45123916 has 12 divisors (see below), whose sum is σ = 83612088. Its totient is φ = 21234752.

The previous prime is 45123893. The next prime is 45123961. The reversal of 45123916 is 61932154.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331726 + ... + 331861.

It is an arithmetic number, because the mean of its divisors is an integer number (6967674).

Almost surely, 2^45123916 is an apocalyptic number.

It is an amenable number.

45123916 is a deficient number, since it is larger than the sum of its proper divisors (38488172).

45123916 is a wasteful number, since it uses less digits than its factorization.

45123916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663608 (or 663606 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 45123916 is about 6717.4337361823. The cubic root of 45123916 is about 356.0155171455.

The spelling of 45123916 in words is "forty-five million, one hundred twenty-three thousand, nine hundred sixteen".