138496533 has 16 divisors (see below), whose sum is σ = 211835520. Its totient is φ = 78843456.

The previous prime is 138496511. The next prime is 138496537. The reversal of 138496533 is 335694831.

It is not a de Polignac number, because 138496533 - 2⁸ = 138496277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138496537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6610 + ... + 17907.

It is an arithmetic number, because the mean of its divisors is an integer number (13239720).

Almost surely, 2^138496533 is an apocalyptic number.

It is an amenable number.

138496533 is a deficient number, since it is larger than the sum of its proper divisors (73338987).

138496533 is a wasteful number, since it uses less digits than its factorization.

138496533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24796.

The product of its digits is 233280, while the sum is 42.

The square root of 138496533 is about 11768.4549963026. The cubic root of 138496533 is about 517.3839680112.

The spelling of 138496533 in words is "one hundred thirty-eight million, four hundred ninety-six thousand, five hundred thirty-three".