538362139 has 4 divisors (see below), whose sum is σ = 615271024. Its totient is φ = 461453256.

The previous prime is 538362133. The next prime is 538362161. The reversal of 538362139 is 931263835.

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 538362139 - 2¹⁵ = 538329371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538362133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38454432 + ... + 38454445.

It is an arithmetic number, because the mean of its divisors is an integer number (153817756).

Almost surely, 2^538362139 is an apocalyptic number.

538362139 is a deficient number, since it is larger than the sum of its proper divisors (76908885).

538362139 is an equidigital number, since it uses as much as digits as its factorization.

538362139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76908884.

The product of its digits is 116640, while the sum is 40.

The square root of 538362139 is about 23202.6321567188. The cubic root of 538362139 is about 813.5011477198.

The spelling of 538362139 in words is "five hundred thirty-eight million, three hundred sixty-two thousand, one hundred thirty-nine".