139231627 has 4 divisors (see below), whose sum is σ = 145285200. Its totient is φ = 133178056.

The previous prime is 139231579. The next prime is 139231637. The reversal of 139231627 is 726132931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726132931 = 23 ⋅31570997.

It is a cyclic number.

It is not a de Polignac number, because 139231627 - 2¹¹ = 139229579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139231592 and 139231601.

It is not an unprimeable number, because it can be changed into a prime (139231637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026752 + ... + 3026797.

It is an arithmetic number, because the mean of its divisors is an integer number (36321300).

Almost surely, 2^139231627 is an apocalyptic number.

139231627 is a deficient number, since it is larger than the sum of its proper divisors (6053573).

139231627 is an equidigital number, since it uses as much as digits as its factorization.

139231627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053572.

The product of its digits is 13608, while the sum is 34.

The square root of 139231627 is about 11799.6452065306. The cubic root of 139231627 is about 518.2977212006.

The spelling of 139231627 in words is "one hundred thirty-nine million, two hundred thirty-one thousand, six hundred twenty-seven".