139053888 has 56 divisors (see below), whose sum is σ = 408797760. Its totient is φ = 46350720.

The previous prime is 139053851. The next prime is 139053899. The reversal of 139053888 is 888350931.

139053888 is a `hidden beast` number, since 1 + 39 + 0 + 538 + 88 = 666.

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, 38508 + ... + 41963.

It is an arithmetic number, because the mean of its divisors is an integer number (7299960).

Almost surely, 2^139053888 is an apocalyptic number.

139053888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139053888 is an abundant number, since it is smaller than the sum of its proper divisors (269743872).

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

139053888 is an equidigital number, since it uses as much as digits as its factorization.

139053888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80492 (or 80476 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 139053888 is about 11792.1112613476. Note that the first 3 decimals coincide. The cubic root of 139053888 is about 518.0770794100.

It can be divided in two parts, 1390 and 53888, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 139053888 in words is "one hundred thirty-nine million, fifty-three thousand, eight hundred eighty-eight".