458539138 has 4 divisors (see below), whose sum is σ = 687808710. Its totient is φ = 229269568.

The previous prime is 458539127. The next prime is 458539153. The reversal of 458539138 is 831935854.

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., 457232689 + 1306449 = 21383^2 + 1143^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 114634783 + ... + 114634786.

Almost surely, 2^458539138 is an apocalyptic number.

458539138 is a deficient number, since it is larger than the sum of its proper divisors (229269572).

458539138 is a wasteful number, since it uses less digits than its factorization.

458539138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229269571.

The product of its digits is 518400, while the sum is 46.

The square root of 458539138 is about 21413.5269864635. The cubic root of 458539138 is about 771.1262195064.

The spelling of 458539138 in words is "four hundred fifty-eight million, five hundred thirty-nine thousand, one hundred thirty-eight".