54812138 has 4 divisors (see below), whose sum is σ = 82218210. Its totient is φ = 27406068.

The previous prime is 54812111. The next prime is 54812161. The reversal of 54812138 is 83121845.

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., 40921609 + 13890529 = 6397^2 + 3727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13703033 + ... + 13703036.

Almost surely, 2^54812138 is an apocalyptic number.

54812138 is a deficient number, since it is larger than the sum of its proper divisors (27406072).

54812138 is a wasteful number, since it uses less digits than its factorization.

54812138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27406071.

The product of its digits is 7680, while the sum is 32.

The square root of 54812138 is about 7403.5219996972. The cubic root of 54812138 is about 379.8617641233.

The spelling of 54812138 in words is "fifty-four million, eight hundred twelve thousand, one hundred thirty-eight".