139724156 has 48 divisors (see below), whose sum is σ = 304184160. Its totient is φ = 55173120.

The previous prime is 139724153. The next prime is 139724171. The reversal of 139724156 is 651427931.

139724156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139724153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2540 + ... + 16908.

It is an arithmetic number, because the mean of its divisors is an integer number (6337170).

Almost surely, 2^139724156 is an apocalyptic number.

It is an amenable number.

139724156 is an abundant number, since it is smaller than the sum of its proper divisors (164460004).

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

139724156 is a wasteful number, since it uses less digits than its factorization.

139724156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14414 (or 14412 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 139724156 is about 11820.4972822636. The cubic root of 139724156 is about 518.9081577851.

The spelling of 139724156 in words is "one hundred thirty-nine million, seven hundred twenty-four thousand, one hundred fifty-six".