1612423931 has 2 divisors, whose sum is σ = 1612423932. Its totient is φ = 1612423930.

The previous prime is 1612423909. The next prime is 1612423949. The reversal of 1612423931 is 1393242161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1612423931 - 2¹⁰ = 1612422907 is a prime.

It is a super-2 number, since 2×1612423931² = 5199821866522985522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1612423951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806211965 + 806211966.

It is an arithmetic number, because the mean of its divisors is an integer number (806211966).

Almost surely, 2^1612423931 is an apocalyptic number.

1612423931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612423931 is an equidigital number, since it uses as much as digits as its factorization.

1612423931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 1612423931 is about 40154.9988295355. The cubic root of 1612423931 is about 1172.6266094717.

The spelling of 1612423931 in words is "one billion, six hundred twelve million, four hundred twenty-three thousand, nine hundred thirty-one".