104185251 has 16 divisors (see below), whose sum is σ = 155020320. Its totient is φ = 69154560.

The previous prime is 104185247. The next prime is 104185253. The reversal of 104185251 is 152581401.

It is not a de Polignac number, because 104185251 - 2² = 104185247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (104185253) 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, 1990 + ... + 14571.

It is an arithmetic number, because the mean of its divisors is an integer number (9688770).

Almost surely, 2^104185251 is an apocalyptic number.

104185251 is a deficient number, since it is larger than the sum of its proper divisors (50835069).

104185251 is a wasteful number, since it uses less digits than its factorization.

104185251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16803 (or 16797 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 104185251 is about 10207.1176636698. The cubic root of 104185251 is about 470.5459944202.

The spelling of 104185251 in words is "one hundred four million, one hundred eighty-five thousand, two hundred fifty-one".