122427931 has 16 divisors (see below), whose sum is σ = 134118720. Its totient is φ = 111283200.

The previous prime is 122427917. The next prime is 122427947. The reversal of 122427931 is 139724221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122427931 is a prime.

It is a super-2 number, since 2×122427931² = 29977196577881522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122427893 and 122427902.

It is not an unprimeable number, because it can be changed into a prime (122427901) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 94335 + ... + 95623.

It is an arithmetic number, because the mean of its divisors is an integer number (8382420).

Almost surely, 2^122427931 is an apocalyptic number.

122427931 is a deficient number, since it is larger than the sum of its proper divisors (11690789).

122427931 is a wasteful number, since it uses less digits than its factorization.

122427931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its digits is 6048, while the sum is 31.

The square root of 122427931 is about 11064.7155860420. The cubic root of 122427931 is about 496.5467801165.

The spelling of 122427931 in words is "one hundred twenty-two million, four hundred twenty-seven thousand, nine hundred thirty-one".