45166738 has 4 divisors (see below), whose sum is σ = 67750110. Its totient is φ = 22583368.

The previous prime is 45166729. The next prime is 45166769. The reversal of 45166738 is 83766154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32228329 + 12938409 = 5677^2 + 3597^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 45166738.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11291683 + ... + 11291686.

Almost surely, 2^45166738 is an apocalyptic number.

45166738 is a deficient number, since it is larger than the sum of its proper divisors (22583372).

45166738 is a wasteful number, since it uses less digits than its factorization.

45166738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22583371.

The product of its digits is 120960, while the sum is 40.

The square root of 45166738 is about 6720.6203582705. The cubic root of 45166738 is about 356.1280995470.

The spelling of 45166738 in words is "forty-five million, one hundred sixty-six thousand, seven hundred thirty-eight".