139796390 has 8 divisors (see below), whose sum is σ = 251633520. Its totient is φ = 55918552.

The previous prime is 139796381. The next prime is 139796399. The reversal of 139796390 is 93697931.

139796390 is digitally balanced in base 2, 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 (139796381) and next prime (139796399).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139796399) 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, 6989810 + ... + 6989829.

It is an arithmetic number, because the mean of its divisors is an integer number (31454190).

Almost surely, 2^139796390 is an apocalyptic number.

139796390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139796390 is a deficient number, since it is larger than the sum of its proper divisors (111837130).

139796390 is a wasteful number, since it uses less digits than its factorization.

139796390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979646.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 139796390 is about 11823.5523426760. The cubic root of 139796390 is about 518.9975633577.

The spelling of 139796390 in words is "one hundred thirty-nine million, seven hundred ninety-six thousand, three hundred ninety".