104001421 has 16 divisors (see below), whose sum is σ = 111888000. Its totient is φ = 96380928.

The previous prime is 104001419. The next prime is 104001433. The reversal of 104001421 is 124100401.

It is a cyclic number.

It is not a de Polignac number, because 104001421 - 2¹ = 104001419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104001451) 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, 231405 + ... + 231853.

It is an arithmetic number, because the mean of its divisors is an integer number (6993000).

Almost surely, 2^104001421 is an apocalyptic number.

It is an amenable number.

104001421 is a deficient number, since it is larger than the sum of its proper divisors (7886579).

104001421 is a wasteful number, since it uses less digits than its factorization.

104001421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 104001421 is about 10198.1086972046. The cubic root of 104001421 is about 470.2690793591.

Adding to 104001421 its reverse (124100401), we get a palindrome (228101822).

The spelling of 104001421 in words is "one hundred four million, one thousand, four hundred twenty-one".