139057299 has 6 divisors (see below), whose sum is σ = 200860556. Its totient is φ = 92704860.

The previous prime is 139057283. The next prime is 139057309. The reversal of 139057299 is 992750931.

It is a happy number.

It is not a de Polignac number, because 139057299 - 2⁴ = 139057283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139057099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7725397 + ... + 7725414.

Almost surely, 2^139057299 is an apocalyptic number.

139057299 is a deficient number, since it is larger than the sum of its proper divisors (61803257).

139057299 is a wasteful number, since it uses less digits than its factorization.

139057299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15450817 (or 15450814 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 139057299 is about 11792.2558910499. The cubic root of 139057299 is about 518.0813155291.

The spelling of 139057299 in words is "one hundred thirty-nine million, fifty-seven thousand, two hundred ninety-nine".