104152821 has 8 divisors (see below), whose sum is σ = 139483104. Its totient is φ = 69128880.

The previous prime is 104152801. The next prime is 104152843. The reversal of 104152821 is 128251401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104152821 - 2⁹ = 104152309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104152791 and 104152800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104152801) 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 7 ways as a sum of consecutive naturals, for example, 75790 + ... + 77151.

It is an arithmetic number, because the mean of its divisors is an integer number (17435388).

Almost surely, 2^104152821 is an apocalyptic number.

It is an amenable number.

104152821 is a deficient number, since it is larger than the sum of its proper divisors (35330283).

104152821 is a wasteful number, since it uses less digits than its factorization.

104152821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153171.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 104152821 is about 10205.5289426859. The cubic root of 104152821 is about 470.4971666829.

The spelling of 104152821 in words is "one hundred four million, one hundred fifty-two thousand, eight hundred twenty-one".