139752885 has 64 divisors (see below), whose sum is σ = 250617600. Its totient is φ = 66189312.

The previous prime is 139752883. The next prime is 139752931. The reversal of 139752885 is 588257931.

139752885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139752885 - 2¹ = 139752883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139752883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 305577 + ... + 306033.

It is an arithmetic number, because the mean of its divisors is an integer number (3915900).

Almost surely, 2^139752885 is an apocalyptic number.

139752885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139752885 is a deficient number, since it is larger than the sum of its proper divisors (110864715).

139752885 is a wasteful number, since it uses less digits than its factorization.

139752885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550.

The product of its digits is 604800, while the sum is 48.

The square root of 139752885 is about 11821.7124394057. The cubic root of 139752885 is about 518.9437199749.

The spelling of 139752885 in words is "one hundred thirty-nine million, seven hundred fifty-two thousand, eight hundred eighty-five".