139859432297 has 4 divisors (see below), whose sum is σ = 150617850180. Its totient is φ = 129101014416.

The previous prime is 139859432257. The next prime is 139859432299. The reversal of 139859432297 is 792234958931.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48275120656 + 91584311641 = 219716^2 + 302629^2 .

It is a cyclic number.

It is not a de Polignac number, because 139859432297 - 2⁶ = 139859432233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139859432299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5379208922 + ... + 5379208947.

It is an arithmetic number, because the mean of its divisors is an integer number (37654462545).

Almost surely, 2^139859432297 is an apocalyptic number.

It is an amenable number.

139859432297 is a deficient number, since it is larger than the sum of its proper divisors (10758417883).

139859432297 is a wasteful number, since it uses less digits than its factorization.

139859432297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10758417882.

The product of its digits is 29393280, while the sum is 62.

The spelling of 139859432297 in words is "one hundred thirty-nine billion, eight hundred fifty-nine million, four hundred thirty-two thousand, two hundred ninety-seven".