122915249 has 4 divisors (see below), whose sum is σ = 123012336. Its totient is φ = 122818164.

The previous prime is 122915239. The next prime is 122915251. The reversal of 122915249 is 942519221.

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.

It is a cyclic number.

It is not a de Polignac number, because 122915249 - 2⁸ = 122914993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122915209) 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, 46619 + ... + 49184.

It is an arithmetic number, because the mean of its divisors is an integer number (30753084).

Almost surely, 2^122915249 is an apocalyptic number.

It is an amenable number.

122915249 is a deficient number, since it is larger than the sum of its proper divisors (97087).

122915249 is an equidigital number, since it uses as much as digits as its factorization.

122915249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97086.

The product of its digits is 12960, while the sum is 35.

The square root of 122915249 is about 11086.7149778462. The cubic root of 122915249 is about 497.2047340982.

The spelling of 122915249 in words is "one hundred twenty-two million, nine hundred fifteen thousand, two hundred forty-nine".