139797086 has 32 divisors (see below), whose sum is σ = 260856288. Its totient is φ = 55203840.

The previous prime is 139797071. The next prime is 139797101. The reversal of 139797086 is 680797931.

139797086 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (139797071) and next prime (139797101).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9515 + ... + 19238.

It is an arithmetic number, because the mean of its divisors is an integer number (8151759).

Almost surely, 2^139797086 is an apocalyptic number.

139797086 is a deficient number, since it is larger than the sum of its proper divisors (121059202).

139797086 is a wasteful number, since it uses less digits than its factorization.

139797086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28796.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 139797086 is about 11823.5817754181. The cubic root of 139797086 is about 518.9984246620.

The spelling of 139797086 in words is "one hundred thirty-nine million, seven hundred ninety-seven thousand, eighty-six".