139071072 has 48 divisors (see below), whose sum is σ = 417215232. Its totient is φ = 39734400.

The previous prime is 139071061. The next prime is 139071077. The reversal of 139071072 is 270170931.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139071077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102804 + ... + 104147.

It is an arithmetic number, because the mean of its divisors is an integer number (8691984).

Almost surely, 2^139071072 is an apocalyptic number.

139071072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139071072 is an abundant number, since it is smaller than the sum of its proper divisors (278144160).

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

139071072 is a wasteful number, since it uses less digits than its factorization.

139071072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206971 (or 206963 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 139071072 is about 11792.8398615431. The cubic root of 139071072 is about 518.0984195057.

The spelling of 139071072 in words is "one hundred thirty-nine million, seventy-one thousand, seventy-two".