45136838 has 4 divisors (see below), whose sum is σ = 67705260. Its totient is φ = 22568418.

The previous prime is 45136813. The next prime is 45136841. The reversal of 45136838 is 83863154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83863154 = 2 ⋅41931577.

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, 11284208 + ... + 11284211.

It is an arithmetic number, because the mean of its divisors is an integer number (16926315).

Almost surely, 2^45136838 is an apocalyptic number.

45136838 is a deficient number, since it is larger than the sum of its proper divisors (22568422).

45136838 is a wasteful number, since it uses less digits than its factorization.

45136838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22568421.

The product of its digits is 69120, while the sum is 38.

The square root of 45136838 is about 6718.3954929730. The cubic root of 45136838 is about 356.0494975994.

The spelling of 45136838 in words is "forty-five million, one hundred thirty-six thousand, eight hundred thirty-eight".