139230534 has 16 divisors (see below), whose sum is σ = 279075888. Its totient is φ = 46307712.

The previous prime is 139230529. The next prime is 139230541. The reversal of 139230534 is 435032931.

139230534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22647 + ... + 28130.

It is an arithmetic number, because the mean of its divisors is an integer number (17442243).

Almost surely, 2^139230534 is an apocalyptic number.

139230534 is an abundant number, since it is smaller than the sum of its proper divisors (139845354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139230534 is a wasteful number, since it uses less digits than its factorization.

139230534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51239.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 139230534 is about 11799.5988914878. The cubic root of 139230534 is about 518.2963649453.

The spelling of 139230534 in words is "one hundred thirty-nine million, two hundred thirty thousand, five hundred thirty-four".