139708472 has 8 divisors (see below), whose sum is σ = 261953400. Its totient is φ = 69854232.

The previous prime is 139708469. The next prime is 139708507. The reversal of 139708472 is 274807931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8731772 + ... + 8731787.

It is an arithmetic number, because the mean of its divisors is an integer number (32744175).

Almost surely, 2^139708472 is an apocalyptic number.

It is an amenable number.

139708472 is a deficient number, since it is larger than the sum of its proper divisors (122244928).

139708472 is a wasteful number, since it uses less digits than its factorization.

139708472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17463565 (or 17463561 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 139708472 is about 11819.8338397796. The cubic root of 139708472 is about 518.8887412903. Note that the first 3 decimals are identical.

The spelling of 139708472 in words is "one hundred thirty-nine million, seven hundred eight thousand, four hundred seventy-two".