139465715 has 4 divisors (see below), whose sum is σ = 167358864. Its totient is φ = 111572568.

The previous prime is 139465709. The next prime is 139465747. The reversal of 139465715 is 517564931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139465715 - 2⁴ = 139465699 is a prime.

It is a super-2 number, since 2×139465715² = 38901371320922450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13946567 + ... + 13946576.

It is an arithmetic number, because the mean of its divisors is an integer number (41839716).

Almost surely, 2^139465715 is an apocalyptic number.

139465715 is a deficient number, since it is larger than the sum of its proper divisors (27893149).

139465715 is an equidigital number, since it uses as much as digits as its factorization.

139465715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27893148.

The product of its digits is 113400, while the sum is 41.

The square root of 139465715 is about 11809.5603220442. The cubic root of 139465715 is about 518.5880272366.

The spelling of 139465715 in words is "one hundred thirty-nine million, four hundred sixty-five thousand, seven hundred fifteen".