139283740 has 24 divisors (see below), whose sum is σ = 297293472. Its totient is φ = 54799680.

The previous prime is 139283717. The next prime is 139283773. The reversal of 139283740 is 47382931.

It is a self number, because there is not a number n which added to its sum of digits gives 139283740.

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, 55864 + ... + 58303.

It is an arithmetic number, because the mean of its divisors is an integer number (12387228).

Almost surely, 2^139283740 is an apocalyptic number.

139283740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139283740 is an abundant number, since it is smaller than the sum of its proper divisors (158009732).

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

139283740 is a wasteful number, since it uses less digits than its factorization.

139283740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114237 (or 114235 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 139283740 is about 11801.8532443002. The cubic root of 139283740 is about 518.3623776788.

The spelling of 139283740 in words is "one hundred thirty-nine million, two hundred eighty-three thousand, seven hundred forty".