139020672 has 64 divisors (see below), whose sum is σ = 422035200. Its totient is φ = 39719424.

The previous prime is 139020641. The next prime is 139020731. The reversal of 139020672 is 276020931.

139020672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23172 + ... + 28547.

It is an arithmetic number, because the mean of its divisors is an integer number (6594300).

Almost surely, 2^139020672 is an apocalyptic number.

139020672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139020672 is an abundant number, since it is smaller than the sum of its proper divisors (283014528).

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

139020672 is an equidigital number, since it uses as much as digits as its factorization.

139020672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51743 (or 51731 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 139020672 is about 11790.7027780366. The cubic root of 139020672 is about 518.0358248554.

It can be divided in two parts, 1390206 and 72, that added together give a triangular number (1390278 = T₁₆₆₇).

The spelling of 139020672 in words is "one hundred thirty-nine million, twenty thousand, six hundred seventy-two".