104139972 has 24 divisors (see below), whose sum is σ = 269992800. Its totient is φ = 34713288.

The previous prime is 104139967. The next prime is 104139983. The reversal of 104139972 is 279931401.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482022 + ... + 482237.

It is an arithmetic number, because the mean of its divisors is an integer number (11249700).

Almost surely, 2^104139972 is an apocalyptic number.

104139972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104139972 is an abundant number, since it is smaller than the sum of its proper divisors (165852828).

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

104139972 is a wasteful number, since it uses less digits than its factorization.

104139972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964272 (or 964264 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 104139972 is about 10204.8994115572. The cubic root of 104139972 is about 470.4778179776.

It can be divided in two parts, 104139 and 972, that added together give a triangular number (105111 = T₄₅₈).

The spelling of 104139972 in words is "one hundred four million, one hundred thirty-nine thousand, nine hundred seventy-two".