139813880 has 32 divisors (see below), whose sum is σ = 315252000. Its totient is φ = 55806336.

The previous prime is 139813879. The next prime is 139813897. The reversal of 139813880 is 88318931.

It is a happy number.

139813880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16646 + ... + 23594.

It is an arithmetic number, because the mean of its divisors is an integer number (9851625).

Almost surely, 2^139813880 is an apocalyptic number.

139813880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139813880 is an abundant number, since it is smaller than the sum of its proper divisors (175438120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139813880 is a wasteful number, since it uses less digits than its factorization.

139813880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463 (or 7459 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 139813880 is about 11824.2919449750. The cubic root of 139813880 is about 519.0192064746.

The spelling of 139813880 in words is "one hundred thirty-nine million, eight hundred thirteen thousand, eight hundred eighty".