45612081 has 12 divisors (see below), whose sum is σ = 66199120. Its totient is φ = 30262680.

The previous prime is 45612023. The next prime is 45612107. The reversal of 45612081 is 18021654.

45612081 is a `hidden beast` number, since 4 + 561 + 20 + 81 = 666.

It is not a de Polignac number, because 45612081 - 2⁷ = 45611953 is a prime.

It is a super-2 number, since 2×45612081² = 4160923866301122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45612011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10111 + ... + 13908.

Almost surely, 2^45612081 is an apocalyptic number.

It is an amenable number.

45612081 is a deficient number, since it is larger than the sum of its proper divisors (20587039).

45612081 is a wasteful number, since it uses less digits than its factorization.

45612081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24236 (or 24233 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 45612081 is about 6753.6716680632. The cubic root of 45612081 is about 357.2947451702.

The spelling of 45612081 in words is "forty-five million, six hundred twelve thousand, eighty-one".