139300881 has 8 divisors (see below), whose sum is σ = 188779584. Its totient is φ = 91344720.

The previous prime is 139300853. The next prime is 139300883. The reversal of 139300881 is 188003931.

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

It is not a de Polignac number, because 139300881 - 2⁵ = 139300849 is a prime.

It is a super-2 number, since 2×139300881² = 38809470894752322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (139300883) 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, 380421 + ... + 380786.

It is an arithmetic number, because the mean of its divisors is an integer number (23597448).

Almost surely, 2^139300881 is an apocalyptic number.

It is an amenable number.

139300881 is a deficient number, since it is larger than the sum of its proper divisors (49478703).

139300881 is an equidigital number, since it uses as much as digits as its factorization.

139300881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761271.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 139300881 is about 11802.5794214655. The cubic root of 139300881 is about 518.3836409530.

The spelling of 139300881 in words is "one hundred thirty-nine million, three hundred thousand, eight hundred eighty-one".