139315 has 16 divisors (see below), whose sum is σ = 194400. Its totient is φ = 94720.

The previous prime is 139313. The next prime is 139333. The reversal of 139315 is 513931.

It is not a de Polignac number, because 139315 - 2¹ = 139313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139313) 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, 861 + ... + 1009.

It is an arithmetic number, because the mean of its divisors is an integer number (12150).

2¹³⁹³¹⁵ is an apocalyptic number.

139315 is the 187-th decagonal number.

139315 is a deficient number, since it is larger than the sum of its proper divisors (55085).

139315 is a wasteful number, since it uses less digits than its factorization.

139315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182.

The product of its digits is 405, while the sum is 22.

The square root of 139315 is about 373.2492464828. The cubic root of 139315 is about 51.8401154150.

It can be divided in two parts, 139 and 315, that added together give a palindrome (454).

The spelling of 139315 in words is "one hundred thirty-nine thousand, three hundred fifteen".