139308120 has 128 divisors (see below), whose sum is σ = 530726400. Its totient is φ = 31840128.

The previous prime is 139308109. The next prime is 139308131. The reversal of 139308120 is 21803931.

It is an interprime number because it is at equal distance from previous prime (139308109) and next prime (139308131).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1654 + ... + 16773.

It is an arithmetic number, because the mean of its divisors is an integer number (4146300).

Almost surely, 2^139308120 is an apocalyptic number.

139308120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139308120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265363200).

139308120 is an abundant number, since it is smaller than the sum of its proper divisors (391418280).

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

139308120 is a wasteful number, since it uses less digits than its factorization.

139308120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18454 (or 18444 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 139308120 is about 11802.8860877329. The cubic root of 139308120 is about 518.3926203511.

The spelling of 139308120 in words is "one hundred thirty-nine million, three hundred eight thousand, one hundred twenty".