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122125131 = 337361961
BaseRepresentation
bin1110100011101…
…11101101001011
322111210121012000
413101313231023
5222231001011
620041322043
73012021642
oct721675513
9274717160
10122125131
1162a33467
1234a96323
131c3bc2bb
1412310359
15aac5356
hex7477b4b

122125131 has 16 divisors (see below), whose sum is σ = 183407520. Its totient is φ = 80300160.

The previous prime is 122125109. The next prime is 122125153. The reversal of 122125131 is 131521221.

It is an interprime number because it is at equal distance from previous prime (122125109) and next prime (122125153).

It is not a de Polignac number, because 122125131 - 26 = 122125067 is a prime.

It is a super-2 number, since 2×1221251312 = 29829095243534322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122124131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29010 + ... + 32951.

It is an arithmetic number, because the mean of its divisors is an integer number (11462970).

Almost surely, 2122125131 is an apocalyptic number.

122125131 is a deficient number, since it is larger than the sum of its proper divisors (61282389).

122125131 is an equidigital number, since it uses as much as digits as its factorization.

122125131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62043 (or 62037 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 122125131 is about 11051.0239797043. The cubic root of 122125131 is about 496.1370737934.

Adding to 122125131 its reverse (131521221), we get a palindrome (253646352).

The spelling of 122125131 in words is "one hundred twenty-two million, one hundred twenty-five thousand, one hundred thirty-one".

Divisors: 1 3 9 27 73 219 657 1971 61961 185883 557649 1672947 4523153 13569459 40708377 122125131