139012724 has 12 divisors (see below), whose sum is σ = 243370848. Its totient is φ = 69478200.

The previous prime is 139012703. The next prime is 139012729. The reversal of 139012724 is 427210931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139012729) 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 3 ways as a sum of consecutive naturals, for example, 7319 + ... + 18209.

It is an arithmetic number, because the mean of its divisors is an integer number (20280904).

Almost surely, 2^139012724 is an apocalyptic number.

It is an amenable number.

139012724 is a deficient number, since it is larger than the sum of its proper divisors (104358124).

139012724 is a wasteful number, since it uses less digits than its factorization.

139012724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14086 (or 14084 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 139012724 is about 11790.3657280001. The cubic root of 139012724 is about 518.0259523975.

The spelling of 139012724 in words is "one hundred thirty-nine million, twelve thousand, seven hundred twenty-four".