538501138 has 16 divisors (see below), whose sum is σ = 924405120. Its totient is φ = 230471136.

The previous prime is 538501127. The next prime is 538501157. The reversal of 538501138 is 831105835.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15483 + ... + 36286.

It is an arithmetic number, because the mean of its divisors is an integer number (57775320).

Almost surely, 2^538501138 is an apocalyptic number.

538501138 is a deficient number, since it is larger than the sum of its proper divisors (385903982).

538501138 is a wasteful number, since it uses less digits than its factorization.

538501138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52521.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 538501138 is about 23205.6272916722. The cubic root of 538501138 is about 813.5711539527.

The spelling of 538501138 in words is "five hundred thirty-eight million, five hundred one thousand, one hundred thirty-eight".