45173812 has 12 divisors (see below), whose sum is σ = 80234560. Its totient is φ = 22249656.

The previous prime is 45173801. The next prime is 45173813. The reversal of 45173812 is 21837154.

It is a super-2 number, since 2×45173812² = 4081346581222688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45173813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84012 + ... + 84547.

Almost surely, 2^45173812 is an apocalyptic number.

It is an amenable number.

45173812 is a deficient number, since it is larger than the sum of its proper divisors (35060748).

45173812 is a wasteful number, since it uses less digits than its factorization.

45173812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168630 (or 168628 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 45173812 is about 6721.1466283663. The cubic root of 45173812 is about 356.1466907993.

The spelling of 45173812 in words is "forty-five million, one hundred seventy-three thousand, eight hundred twelve".