45631899 has 12 divisors (see below), whose sum is σ = 65972296. Its totient is φ = 30393792.

The previous prime is 45631897. The next prime is 45631903. The reversal of 45631899 is 99813654.

It is a happy number.

45631899 is a `hidden beast` number, since 4 + 5 + 631 + 8 + 9 + 9 = 666.

45631899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45631899 - 2¹ = 45631897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45631897) 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, 15504 + ... + 18210.

Almost surely, 2^45631899 is an apocalyptic number.

45631899 is a deficient number, since it is larger than the sum of its proper divisors (20340397).

45631899 is a wasteful number, since it uses less digits than its factorization.

45631899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586 (or 4583 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 45631899 is about 6755.1387106410. The cubic root of 45631899 is about 357.3464846935.

The spelling of 45631899 in words is "forty-five million, six hundred thirty-one thousand, eight hundred ninety-nine".