139613097 has 12 divisors (see below), whose sum is σ = 201572304. Its totient is φ = 85915440.

The previous prime is 139613093. The next prime is 139613113. The reversal of 139613097 is 790316931.

It is not a de Polignac number, because 139613097 - 2² = 139613093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (139613093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137179 + ... + 138192.

It is an arithmetic number, because the mean of its divisors is an integer number (16797692).

Almost surely, 2^139613097 is an apocalyptic number.

It is an amenable number.

139613097 is a deficient number, since it is larger than the sum of its proper divisors (61959207).

139613097 is a wasteful number, since it uses less digits than its factorization.

139613097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275400 (or 275387 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 139613097 is about 11815.7986187985. The cubic root of 139613097 is about 518.7706375493.

The spelling of 139613097 in words is "one hundred thirty-nine million, six hundred thirteen thousand, ninety-seven".