139198807 has 8 divisors (see below), whose sum is σ = 159845760. Its totient is φ = 119883960.

The previous prime is 139198793. The next prime is 139198823. The reversal of 139198807 is 708891931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139198807 - 2¹⁵ = 139166039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139198867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332803 + ... + 333220.

It is an arithmetic number, because the mean of its divisors is an integer number (19980720).

Almost surely, 2^139198807 is an apocalyptic number.

139198807 is a deficient number, since it is larger than the sum of its proper divisors (20646953).

139198807 is a wasteful number, since it uses less digits than its factorization.

139198807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666053.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 139198807 is about 11798.2544047838. The cubic root of 139198807 is about 518.2569932225.

The spelling of 139198807 in words is "one hundred thirty-nine million, one hundred ninety-eight thousand, eight hundred seven".