1390025139 has 16 divisors (see below), whose sum is σ = 1904547840. Its totient is φ = 901121760.

The previous prime is 1390025137. The next prime is 1390025177. The reversal of 1390025139 is 9315200931.

It is not a de Polignac number, because 1390025139 - 2¹ = 1390025137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1390025137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332142 + ... + 336300.

It is an arithmetic number, because the mean of its divisors is an integer number (119034240).

Almost surely, 2^1390025139 is an apocalyptic number.

1390025139 is a deficient number, since it is larger than the sum of its proper divisors (514522701).

1390025139 is a wasteful number, since it uses less digits than its factorization.

1390025139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7210.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 1390025139 is about 37283.0409033383. The cubic root of 1390025139 is about 1116.0257578426.

The spelling of 1390025139 in words is "one billion, three hundred ninety million, twenty-five thousand, one hundred thirty-nine".