45178612 has 6 divisors (see below), whose sum is σ = 79062578. Its totient is φ = 22589304.

The previous prime is 45178603. The next prime is 45178621. The reversal of 45178612 is 21687154.

It is an interprime number because it is at equal distance from previous prime (45178603) and next prime (45178621).

It can be written as a sum of positive squares in only one way, i.e., 25765776 + 19412836 = 5076^2 + 4406^2 .

It is a super-2 number, since 2×45178612² = 4082213964493088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5647323 + ... + 5647330.

Almost surely, 2^45178612 is an apocalyptic number.

It is an amenable number.

45178612 is a deficient number, since it is larger than the sum of its proper divisors (33883966).

45178612 is a wasteful number, since it uses less digits than its factorization.

45178612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11294657 (or 11294655 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 45178612 is about 6721.5037008098. The cubic root of 45178612 is about 356.1593046235.

The spelling of 45178612 in words is "forty-five million, one hundred seventy-eight thousand, six hundred twelve".