102104421 has 8 divisors (see below), whose sum is σ = 140530944. Its totient is φ = 65873760.

The previous prime is 102104411. The next prime is 102104437. The reversal of 102104421 is 124401201.

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

It is not a de Polignac number, because 102104421 - 2⁹ = 102103909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102104421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102104411) 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, 548856 + ... + 549041.

It is an arithmetic number, because the mean of its divisors is an integer number (17566368).

Almost surely, 2^102104421 is an apocalyptic number.

It is an amenable number.

102104421 is a deficient number, since it is larger than the sum of its proper divisors (38426523).

102104421 is a wasteful number, since it uses less digits than its factorization.

102104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097931.

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

The square root of 102104421 is about 10104.6732257901. The cubic root of 102104421 is about 467.3922593855.

Adding to 102104421 its reverse (124401201), we get a palindrome (226505622).

The spelling of 102104421 in words is "one hundred two million, one hundred four thousand, four hundred twenty-one".