139211375 has 16 divisors (see below), whose sum is σ = 174343104. Its totient is φ = 110980000.

The previous prime is 139211357. The next prime is 139211383. The reversal of 139211375 is 573112931.

It is not a de Polignac number, because 139211375 - 2⁶ = 139211311 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 37085 + ... + 40665.

It is an arithmetic number, because the mean of its divisors is an integer number (10896444).

Almost surely, 2^139211375 is an apocalyptic number.

139211375 is a deficient number, since it is larger than the sum of its proper divisors (35131729).

139211375 is an equidigital number, since it uses as much as digits as its factorization.

139211375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907 (or 3897 counting only the distinct ones).

The product of its digits is 5670, while the sum is 32.

The square root of 139211375 is about 11798.7870139265. The cubic root of 139211375 is about 518.2725902380.

It can be divided in two parts, 1392113 and 75, that multiplied together give a triangular number (104408475 = T₁₄₄₅₀).

The spelling of 139211375 in words is "one hundred thirty-nine million, two hundred eleven thousand, three hundred seventy-five".