122932391 has 12 divisors (see below), whose sum is σ = 130412352. Its totient is φ = 115692000.

The previous prime is 122932357. The next prime is 122932393. The reversal of 122932391 is 193239221.

It is a de Polignac number, because none of the positive numbers 2^k-122932391 is a prime.

It is a super-2 number, since 2×122932391² = 30224745513953762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122932393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395126 + ... + 395436.

It is an arithmetic number, because the mean of its divisors is an integer number (10867696).

Almost surely, 2^122932391 is an apocalyptic number.

122932391 is a deficient number, since it is larger than the sum of its proper divisors (7479961).

122932391 is an frugal number, since it uses more digits than its factorization.

122932391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 383 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 122932391 is about 11087.4880383250. The cubic root of 122932391 is about 497.2278467373.

The spelling of 122932391 in words is "one hundred twenty-two million, nine hundred thirty-two thousand, three hundred ninety-one".