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122135125 = 537971439
BaseRepresentation
bin1110100011110…
…10001001010101
322111211002220011
413101322021111
5222231311000
620041440221
73012063040
oct721721125
9274732804
10122135125
1162a3aa22
1234aa0071
131c3c3a08
1412313c57
15aac82ba
hex747a255

122135125 has 32 divisors (see below), whose sum is σ = 176117760. Its totient is φ = 82828800.

The previous prime is 122135107. The next prime is 122135131. The reversal of 122135125 is 521531221.

It is not a de Polignac number, because 122135125 - 27 = 122134997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122135096 and 122135105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84156 + ... + 85594.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2122135125 is an apocalyptic number.

It is an amenable number.

122135125 is a deficient number, since it is larger than the sum of its proper divisors (53982635).

122135125 is an equidigital number, since it uses as much as digits as its factorization.

122135125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1548 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 122135125 is about 11051.4761457463. The cubic root of 122135125 is about 496.1506070676.

Adding to 122135125 its reverse (521531221), we get a palindrome (643666346).

The spelling of 122135125 in words is "one hundred twenty-two million, one hundred thirty-five thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 97 125 175 485 679 875 1439 2425 3395 7195 10073 12125 16975 35975 50365 84875 139583 179875 251825 697915 977081 1259125 3489575 4885405 17447875 24427025 122135125