45207081 has 12 divisors (see below), whose sum is σ = 67064452. Its totient is φ = 29323296.

The previous prime is 45207079. The next prime is 45207101. The reversal of 45207081 is 18070254.

45207081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20793600 + 24413481 = 4560^2 + 4941^2 .

It is not a de Polignac number, because 45207081 - 2¹ = 45207079 is a prime.

It is a super-2 number, since 2×45207081² = 4087360345081122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45207011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67546 + ... + 68211.

Almost surely, 2^45207081 is an apocalyptic number.

It is an amenable number.

45207081 is a deficient number, since it is larger than the sum of its proper divisors (21857371).

45207081 is a wasteful number, since it uses less digits than its factorization.

45207081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135800 (or 135797 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 45207081 is about 6723.6211225797. The cubic root of 45207081 is about 356.2340993826.

The spelling of 45207081 in words is "forty-five million, two hundred seven thousand, eighty-one".