139258332 has 24 divisors (see below), whose sum is σ = 361040400. Its totient is φ = 46419408.

The previous prime is 139258309. The next prime is 139258333. The reversal of 139258332 is 233852931.

139258332 is digitally balanced in base 2, 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139258333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644607 + ... + 644822.

It is an arithmetic number, because the mean of its divisors is an integer number (15043350).

Almost surely, 2^139258332 is an apocalyptic number.

139258332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139258332 is an abundant number, since it is smaller than the sum of its proper divisors (221782068).

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

139258332 is a wasteful number, since it uses less digits than its factorization.

139258332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289442 (or 1289434 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 139258332 is about 11800.7767540955. The cubic root of 139258332 is about 518.3308560472.

The spelling of 139258332 in words is "one hundred thirty-nine million, two hundred fifty-eight thousand, three hundred thirty-two".