104012421 has 8 divisors (see below), whose sum is σ = 140113344. Its totient is φ = 68626560.

The previous prime is 104012407. The next prime is 104012423. The reversal of 104012421 is 124210401.

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

It is not a de Polignac number, because 104012421 - 2²¹ = 101915269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104012421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104012423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178425 + ... + 179006.

It is an arithmetic number, because the mean of its divisors is an integer number (17514168).

Almost surely, 2^104012421 is an apocalyptic number.

It is an amenable number.

104012421 is a deficient number, since it is larger than the sum of its proper divisors (36100923).

104012421 is an equidigital number, since it uses as much as digits as its factorization.

104012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357531.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 104012421 is about 10198.6479986320. The cubic root of 104012421 is about 470.2856585477.

Adding to 104012421 its reverse (124210401), we get a palindrome (228222822).

The spelling of 104012421 in words is "one hundred four million, twelve thousand, four hundred twenty-one".