104561900 has 36 divisors (see below), whose sum is σ = 240250248. Its totient is φ = 39363840.

The previous prime is 104561879. The next prime is 104561903. The reversal of 104561900 is 9165401.

It is a super-2 number, since 2×104561900² = 21866381863220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104561900.

It is not an unprimeable number, because it can be changed into a prime (104561903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29054 + ... + 32453.

It is an arithmetic number, because the mean of its divisors is an integer number (6673618).

Almost surely, 2^104561900 is an apocalyptic number.

104561900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104561900 is an abundant number, since it is smaller than the sum of its proper divisors (135688348).

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

104561900 is a wasteful number, since it uses less digits than its factorization.

104561900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61538 (or 61531 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 104561900 is about 10225.5513298795. The cubic root of 104561900 is about 471.1123494802.

The spelling of 104561900 in words is "one hundred four million, five hundred sixty-one thousand, nine hundred".