45037081 has 2 divisors, whose sum is σ = 45037082. Its totient is φ = 45037080.

The previous prime is 45037073. The next prime is 45037117. The reversal of 45037081 is 18073054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43771456 + 1265625 = 6616^2 + 1125^2 .

It is a cyclic number.

It is not a de Polignac number, because 45037081 - 2³ = 45037073 is a prime.

It is a super-2 number, since 2×45037081² = 4056677330001122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45037021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22518540 + 22518541.

It is an arithmetic number, because the mean of its divisors is an integer number (22518541).

Almost surely, 2^45037081 is an apocalyptic number.

It is an amenable number.

45037081 is a deficient number, since it is larger than the sum of its proper divisors (1).

45037081 is an equidigital number, since it uses as much as digits as its factorization.

45037081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 45037081 is about 6710.9672179202. The cubic root of 45037081 is about 355.7870022635.

The spelling of 45037081 in words is "forty-five million, thirty-seven thousand, eighty-one".