45431554 has 16 divisors (see below), whose sum is σ = 80395776. Its totient is φ = 18842400.

The previous prime is 45431513. The next prime is 45431569. The reversal of 45431554 is 45513454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51907 + ... + 52774.

It is an arithmetic number, because the mean of its divisors is an integer number (5024736).

Almost surely, 2^45431554 is an apocalyptic number.

45431554 is a deficient number, since it is larger than the sum of its proper divisors (34964222).

45431554 is a wasteful number, since it uses less digits than its factorization.

45431554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104721.

The product of its digits is 24000, while the sum is 31.

The square root of 45431554 is about 6740.2933170597. The cubic root of 45431554 is about 356.8227457146.

The spelling of 45431554 in words is "forty-five million, four hundred thirty-one thousand, five hundred fifty-four".