139372863 has 8 divisors (see below), whose sum is σ = 212377728. Its totient is φ = 79641624.

The previous prime is 139372859. The next prime is 139372867. The reversal of 139372863 is 368273931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (139372859) and next prime (139372867).

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

It is not a de Polignac number, because 139372863 - 2² = 139372859 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139372867) 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, 3318381 + ... + 3318422.

It is an arithmetic number, because the mean of its divisors is an integer number (26547216).

Almost surely, 2^139372863 is an apocalyptic number.

139372863 is a deficient number, since it is larger than the sum of its proper divisors (73004865).

139372863 is an equidigital number, since it uses as much as digits as its factorization.

139372863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636813.

The product of its digits is 163296, while the sum is 42.

The square root of 139372863 is about 11805.6284457881. The cubic root of 139372863 is about 518.4729150136.

The spelling of 139372863 in words is "one hundred thirty-nine million, three hundred seventy-two thousand, eight hundred sixty-three".