139272235 has 4 divisors (see below), whose sum is σ = 167126688. Its totient is φ = 111417784.

The previous prime is 139272229. The next prime is 139272241. The reversal of 139272235 is 532272931.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (139272229) and next prime (139272241).

It is a cyclic number.

It is not a de Polignac number, because 139272235 - 2²⁷ = 5054507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139272235.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13927219 + ... + 13927228.

It is an arithmetic number, because the mean of its divisors is an integer number (41781672).

Almost surely, 2^139272235 is an apocalyptic number.

139272235 is a deficient number, since it is larger than the sum of its proper divisors (27854453).

139272235 is an equidigital number, since it uses as much as digits as its factorization.

139272235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27854452.

The product of its digits is 22680, while the sum is 34.

The square root of 139272235 is about 11801.3658107865. The cubic root of 139272235 is about 518.3481048394.

The spelling of 139272235 in words is "one hundred thirty-nine million, two hundred seventy-two thousand, two hundred thirty-five".