139008235 has 16 divisors (see below), whose sum is σ = 176904000. Its totient is φ = 104498176.

The previous prime is 139008227. The next prime is 139008253. The reversal of 139008235 is 532800931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 139008235 - 2³ = 139008227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139008197 and 139008206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88386 + ... + 89944.

It is an arithmetic number, because the mean of its divisors is an integer number (11056500).

Almost surely, 2^139008235 is an apocalyptic number.

139008235 is a deficient number, since it is larger than the sum of its proper divisors (37895765).

139008235 is a wasteful number, since it uses less digits than its factorization.

139008235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 139008235 is about 11790.1753591709. The cubic root of 139008235 is about 518.0203763047.

The spelling of 139008235 in words is "one hundred thirty-nine million, eight thousand, two hundred thirty-five".