139022744 has 32 divisors (see below), whose sum is σ = 298507680. Its totient is φ = 59460864.

The previous prime is 139022743. The next prime is 139022749. The reversal of 139022744 is 447220931.

It is a self number, because there is not a number n which added to its sum of digits gives 139022744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139022743) 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, 28964 + ... + 33420.

It is an arithmetic number, because the mean of its divisors is an integer number (9328365).

Almost surely, 2^139022744 is an apocalyptic number.

139022744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139022744 is an abundant number, since it is smaller than the sum of its proper divisors (159484936).

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

139022744 is a wasteful number, since it uses less digits than its factorization.

139022744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 139022744 is about 11790.7906435489. The cubic root of 139022744 is about 518.0383984892.

The spelling of 139022744 in words is "one hundred thirty-nine million, twenty-two thousand, seven hundred forty-four".