45661863 has 32 divisors (see below), whose sum is σ = 69350400. Its totient is φ = 26522496.

The previous prime is 45661841. The next prime is 45661871. The reversal of 45661863 is 36816654.

It is not a de Polignac number, because 45661863 - 2⁶ = 45661799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45661163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52728 + ... + 53586.

It is an arithmetic number, because the mean of its divisors is an integer number (2167200).

Almost surely, 2^45661863 is an apocalyptic number.

45661863 is a deficient number, since it is larger than the sum of its proper divisors (23688537).

45661863 is a wasteful number, since it uses less digits than its factorization.

45661863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951.

The product of its digits is 103680, while the sum is 39.

The square root of 45661863 is about 6757.3562137866. The cubic root of 45661863 is about 357.4246842824.

The spelling of 45661863 in words is "forty-five million, six hundred sixty-one thousand, eight hundred sixty-three".