139504376 has 32 divisors (see below), whose sum is σ = 287895600. Its totient is φ = 62845440.

The previous prime is 139504307. The next prime is 139504381. The reversal of 139504376 is 673405931.

It is a happy number.

It is a super-2 number, since 2×139504376² = 38922941846298752, which contains 22 as substring.

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, 2930 + ... + 16958.

Almost surely, 2^139504376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139504376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143947800).

139504376 is an abundant number, since it is smaller than the sum of its proper divisors (148391224).

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

139504376 is a wasteful number, since it uses less digits than its factorization.

139504376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14159 (or 14155 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 139504376 is about 11811.1970604169. The cubic root of 139504376 is about 518.6359417113.

The spelling of 139504376 in words is "one hundred thirty-nine million, five hundred four thousand, three hundred seventy-six".