45085031 has 2 divisors, whose sum is σ = 45085032. Its totient is φ = 45085030.

The previous prime is 45085021. The next prime is 45085069. The reversal of 45085031 is 13058054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45085031 is a prime.

It is a super-2 number, since 2×45085031² = 4065320040541922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45085021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22542515 + 22542516.

It is an arithmetic number, because the mean of its divisors is an integer number (22542516).

Almost surely, 2^45085031 is an apocalyptic number.

45085031 is a deficient number, since it is larger than the sum of its proper divisors (1).

45085031 is an equidigital number, since it uses as much as digits as its factorization.

45085031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 45085031 is about 6714.5387779057. The cubic root of 45085031 is about 355.9132237051.

The spelling of 45085031 in words is "forty-five million, eighty-five thousand, thirty-one".