139333437 has 12 divisors (see below), whose sum is σ = 207752064. Its totient is φ = 89892360.

The previous prime is 139333433. The next prime is 139333489. The reversal of 139333437 is 734333931.

It is a happy number.

139333437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139333437 - 2² = 139333433 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139333433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249423 + ... + 249980.

It is an arithmetic number, because the mean of its divisors is an integer number (17312672).

Almost surely, 2^139333437 is an apocalyptic number.

It is an amenable number.

139333437 is a deficient number, since it is larger than the sum of its proper divisors (68418627).

139333437 is a wasteful number, since it uses less digits than its factorization.

139333437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499440 (or 499437 counting only the distinct ones).

The product of its digits is 61236, while the sum is 36.

The square root of 139333437 is about 11803.9585309336. The cubic root of 139333437 is about 518.4240216099.

The spelling of 139333437 in words is "one hundred thirty-nine million, three hundred thirty-three thousand, four hundred thirty-seven".