45989831 has 2 divisors, whose sum is σ = 45989832. Its totient is φ = 45989830.

The previous prime is 45989813. The next prime is 45989837. The reversal of 45989831 is 13898954.

Together with previous prime (45989813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45989831 - 2⁶ = 45989767 is a prime.

It is a super-2 number, since 2×45989831² = 4230129110817122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45989837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22994915 + 22994916.

It is an arithmetic number, because the mean of its divisors is an integer number (22994916).

Almost surely, 2^45989831 is an apocalyptic number.

45989831 is a deficient number, since it is larger than the sum of its proper divisors (1).

45989831 is an equidigital number, since it uses as much as digits as its factorization.

45989831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 47.

The square root of 45989831 is about 6781.5802730632. The cubic root of 45989831 is about 358.2783822472.

The spelling of 45989831 in words is "forty-five million, nine hundred eighty-nine thousand, eight hundred thirty-one".