45361931 has 2 divisors, whose sum is σ = 45361932. Its totient is φ = 45361930.

The previous prime is 45361919. The next prime is 45361937. The reversal of 45361931 is 13916354.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45361931 is a prime.

It is a super-2 number, since 2×45361931² = 4115409568097522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45361937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22680965 + 22680966.

It is an arithmetic number, because the mean of its divisors is an integer number (22680966).

Almost surely, 2^45361931 is an apocalyptic number.

45361931 is a deficient number, since it is larger than the sum of its proper divisors (1).

45361931 is an equidigital number, since it uses as much as digits as its factorization.

45361931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 45361931 is about 6735.1266506280. The cubic root of 45361931 is about 356.6403778141.

The spelling of 45361931 in words is "forty-five million, three hundred sixty-one thousand, nine hundred thirty-one".