122312493 has 6 divisors (see below), whose sum is σ = 176673614. Its totient is φ = 81541656.

The previous prime is 122312483. The next prime is 122312507. The reversal of 122312493 is 394213221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 104898564 + 17413929 = 10242^2 + 4173^2 .

It is a de Polignac number, because none of the positive numbers 2^k-122312493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6795130 + ... + 6795147.

Almost surely, 2^122312493 is an apocalyptic number.

It is an amenable number.

122312493 is a deficient number, since it is larger than the sum of its proper divisors (54361121).

122312493 is a wasteful number, since it uses less digits than its factorization.

122312493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13590283 (or 13590280 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 122312493 is about 11059.4978638273. The cubic root of 122312493 is about 496.3906654345.

The spelling of 122312493 in words is "one hundred twenty-two million, three hundred twelve thousand, four hundred ninety-three".