139055375 has 16 divisors (see below), whose sum is σ = 177240960. Its totient is φ = 108872800.

The previous prime is 139055369. The next prime is 139055387. The reversal of 139055375 is 573550931.

It is not a de Polignac number, because 139055375 - 2⁶ = 139055311 is a prime.

It is a congruent number.

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, 5960 + ... + 17709.

It is an arithmetic number, because the mean of its divisors is an integer number (11077560).

Almost surely, 2^139055375 is an apocalyptic number.

139055375 is a deficient number, since it is larger than the sum of its proper divisors (38185585).

139055375 is an equidigital number, since it uses as much as digits as its factorization.

139055375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23731 (or 23721 counting only the distinct ones).

The product of its (nonzero) digits is 70875, while the sum is 38.

The square root of 139055375 is about 11792.1743118053. The cubic root of 139055375 is about 518.0789261231.

It can be divided in two parts, 1390 and 55375, that added together give a palindrome (56765).

The spelling of 139055375 in words is "one hundred thirty-nine million, fifty-five thousand, three hundred seventy-five".