139880881 has 8 divisors (see below), whose sum is σ = 160668800. Its totient is φ = 119294208.

The previous prime is 139880861. The next prime is 139880893. The reversal of 139880881 is 188088931.

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 139880881 - 2²⁷ = 5663153 is a prime.

It is a super-2 number, since 2×139880881² = 39133321738672322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139880821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48816 + ... + 51601.

It is an arithmetic number, because the mean of its divisors is an integer number (20083600).

Almost surely, 2^139880881 is an apocalyptic number.

It is an amenable number.

139880881 is a deficient number, since it is larger than the sum of its proper divisors (20787919).

139880881 is a wasteful number, since it uses less digits than its factorization.

139880881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100623.

The product of its (nonzero) digits is 110592, while the sum is 46.

The square root of 139880881 is about 11827.1247985299. The cubic root of 139880881 is about 519.1021006109.

The spelling of 139880881 in words is "one hundred thirty-nine million, eight hundred eighty thousand, eight hundred eighty-one".