122657357 has 4 divisors (see below), whose sum is σ = 125267136. Its totient is φ = 120047580.

The previous prime is 122657351. The next prime is 122657377. The reversal of 122657357 is 753756221.

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: 753756221 = 4243 ⋅177647.

It is a cyclic number.

It is not a de Polignac number, because 122657357 - 2⁴ = 122657341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122657357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122657351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304819 + ... + 1304912.

It is an arithmetic number, because the mean of its divisors is an integer number (31316784).

Almost surely, 2^122657357 is an apocalyptic number.

It is an amenable number.

122657357 is a deficient number, since it is larger than the sum of its proper divisors (2609779).

122657357 is an equidigital number, since it uses as much as digits as its factorization.

122657357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609778.

The product of its digits is 88200, while the sum is 38.

The square root of 122657357 is about 11075.0781938549. The cubic root of 122657357 is about 496.8567574595.

The spelling of 122657357 in words is "one hundred twenty-two million, six hundred fifty-seven thousand, three hundred fifty-seven".