122957975 has 24 divisors (see below), whose sum is σ = 178509408. Its totient is φ = 82252800.

The previous prime is 122957953. The next prime is 122958007. The reversal of 122957975 is 579759221.

It is a happy number.

It is not a de Polignac number, because 122957975 - 2¹² = 122953879 is a prime.

It is a super-2 number, since 2×122957975² = 30237327232201250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1394 + ... + 15743.

It is an arithmetic number, because the mean of its divisors is an integer number (7437892).

Almost surely, 2^122957975 is an apocalyptic number.

122957975 is a deficient number, since it is larger than the sum of its proper divisors (55551433).

122957975 is a wasteful number, since it uses less digits than its factorization.

122957975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17195 (or 17190 counting only the distinct ones).

The product of its digits is 396900, while the sum is 47.

The square root of 122957975 is about 11088.6417112287. The cubic root of 122957975 is about 497.2623377686.

The spelling of 122957975 in words is "one hundred twenty-two million, nine hundred fifty-seven thousand, nine hundred seventy-five".