54227139 has 4 divisors (see below), whose sum is σ = 72302856. Its totient is φ = 36151424.

The previous prime is 54227119. The next prime is 54227149. The reversal of 54227139 is 93172245.

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

It is a cyclic number.

It is not a de Polignac number, because 54227139 - 2⁸ = 54226883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54227119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9037854 + ... + 9037859.

It is an arithmetic number, because the mean of its divisors is an integer number (18075714).

Almost surely, 2^54227139 is an apocalyptic number.

54227139 is a deficient number, since it is larger than the sum of its proper divisors (18075717).

54227139 is a wasteful number, since it uses less digits than its factorization.

54227139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18075716.

The product of its digits is 15120, while the sum is 33.

The square root of 54227139 is about 7363.9078619983. The cubic root of 54227139 is about 378.5055314415.

It can be divided in two parts, 5422 and 7139, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 54227139 in words is "fifty-four million, two hundred twenty-seven thousand, one hundred thirty-nine".