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122345497 = 839145823
BaseRepresentation
bin1110100101011…
…01100000011001
322112012210110201
413102231200121
5222310023442
620050142201
73013630261
oct722554031
9275183421
10122345497
1163073a8a
1234b81961
131c4686b1
141236a7a1
15ab1a7b7
hex74ad819

122345497 has 4 divisors (see below), whose sum is σ = 122492160. Its totient is φ = 122198836.

The previous prime is 122345479. The next prime is 122345507. The reversal of 122345497 is 794543221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 794543221 = 1021778201.

It is a cyclic number.

It is not a de Polignac number, because 122345497 - 211 = 122343449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122345407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72073 + ... + 73750.

It is an arithmetic number, because the mean of its divisors is an integer number (30623040).

Almost surely, 2122345497 is an apocalyptic number.

It is an amenable number.

122345497 is a deficient number, since it is larger than the sum of its proper divisors (146663).

122345497 is an equidigital number, since it uses as much as digits as its factorization.

122345497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146662.

The product of its digits is 60480, while the sum is 37.

The square root of 122345497 is about 11060.9898743286. The cubic root of 122345497 is about 496.4353090186.

The spelling of 122345497 in words is "one hundred twenty-two million, three hundred forty-five thousand, four hundred ninety-seven".

Divisors: 1 839 145823 122345497