139381140 has 48 divisors (see below), whose sum is σ = 399792960. Its totient is φ = 36261120.

The previous prime is 139381133. The next prime is 139381141. The reversal of 139381140 is 41183931.

139381140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 139381098 and 139381107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139381141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25870 + ... + 30789.

It is an arithmetic number, because the mean of its divisors is an integer number (8329020).

Almost surely, 2^139381140 is an apocalyptic number.

139381140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139381140 is an abundant number, since it is smaller than the sum of its proper divisors (260411820).

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

139381140 is a wasteful number, since it uses less digits than its factorization.

139381140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56712 (or 56710 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 139381140 is about 11805.9789937133. The cubic root of 139381140 is about 518.4831784065.

The spelling of 139381140 in words is "one hundred thirty-nine million, three hundred eighty-one thousand, one hundred forty".