45074581 has 2 divisors, whose sum is σ = 45074582. Its totient is φ = 45074580.

The previous prime is 45074567. The next prime is 45074591. The reversal of 45074581 is 18547054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 5447556 = 6295^2 + 2334^2 .

It is a cyclic number.

It is not a de Polignac number, because 45074581 - 2¹⁵ = 45041813 is a prime.

It is a super-2 number, since 2×45074581² = 4063435704651122, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45074521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22537290 + 22537291.

It is an arithmetic number, because the mean of its divisors is an integer number (22537291).

Almost surely, 2^45074581 is an apocalyptic number.

It is an amenable number.

45074581 is a deficient number, since it is larger than the sum of its proper divisors (1).

45074581 is an equidigital number, since it uses as much as digits as its factorization.

45074581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 45074581 is about 6713.7605706489. The cubic root of 45074581 is about 355.8857232207.

The spelling of 45074581 in words is "forty-five million, seventy-four thousand, five hundred eighty-one".