139210712 has 8 divisors (see below), whose sum is σ = 261020100. Its totient is φ = 69605352.

The previous prime is 139210681. The next prime is 139210717. The reversal of 139210712 is 217012931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139210717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8700662 + ... + 8700677.

Almost surely, 2^139210712 is an apocalyptic number.

It is an amenable number.

139210712 is a deficient number, since it is larger than the sum of its proper divisors (121809388).

139210712 is a wasteful number, since it uses less digits than its factorization.

139210712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17401345 (or 17401341 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 139210712 is about 11798.7589177845. The cubic root of 139210712 is about 518.2717674718.

The spelling of 139210712 in words is "one hundred thirty-nine million, two hundred ten thousand, seven hundred twelve".