104121072 has 80 divisors (see below), whose sum is σ = 326050560. Its totient is φ = 31550400.

The previous prime is 104121053. The next prime is 104121079. The reversal of 104121072 is 270121401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104121079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6204 + ... + 15707.

It is an arithmetic number, because the mean of its divisors is an integer number (4075632).

Almost surely, 2^104121072 is an apocalyptic number.

104121072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104121072 is an abundant number, since it is smaller than the sum of its proper divisors (221929488).

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

104121072 is a wasteful number, since it uses less digits than its factorization.

104121072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21939 (or 21927 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 104121072 is about 10203.9733437519. The cubic root of 104121072 is about 470.4493544634.

Adding to 104121072 its reverse (270121401), we get a palindrome (374242473).

The spelling of 104121072 in words is "one hundred four million, one hundred twenty-one thousand, seventy-two".