12105402 has 8 divisors (see below), whose sum is σ = 24210816. Its totient is φ = 4035132.

The previous prime is 12105397. The next prime is 12105419. The reversal of 12105402 is 20450121.

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

12105402 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008778 + ... + 1008789.

It is an arithmetic number, because the mean of its divisors is an integer number (3026352).

Almost surely, 2^12105402 is an apocalyptic number.

12105402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12105402 is a wasteful number, since it uses less digits than its factorization.

12105402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017572.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12105402 is about 3479.2818224455. The cubic root of 12105402 is about 229.6112019892.

Adding to 12105402 its reverse (20450121), we get a palindrome (32555523).

The spelling of 12105402 in words is "twelve million, one hundred five thousand, four hundred two".