139471224 has 16 divisors (see below), whose sum is σ = 348678120. Its totient is φ = 46490400.

The previous prime is 139471187. The next prime is 139471243. The reversal of 139471224 is 422174931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2905627 + ... + 2905674.

Almost surely, 2^139471224 is an apocalyptic number.

It is an amenable number.

139471224 is an abundant number, since it is smaller than the sum of its proper divisors (209206896).

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

139471224 is a wasteful number, since it uses less digits than its factorization.

139471224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811310 (or 5811306 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 139471224 is about 11809.7935629714. The cubic root of 139471224 is about 518.5948553516.

The spelling of 139471224 in words is "one hundred thirty-nine million, four hundred seventy-one thousand, two hundred twenty-four".