12102605 has 8 divisors (see below), whose sum is σ = 14566392. Its totient is φ = 9653248.

The previous prime is 12102569. The next prime is 12102613. The reversal of 12102605 is 50620121.

It can be written as a sum of positive squares in 4 ways, for example, as 68644 + 12033961 = 262^2 + 3469^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12102605 - 2¹⁸ = 11840461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664 + ... + 5193.

It is an arithmetic number, because the mean of its divisors is an integer number (1820799).

Almost surely, 2^12102605 is an apocalyptic number.

It is an amenable number.

12102605 is a deficient number, since it is larger than the sum of its proper divisors (2463787).

12102605 is an equidigital number, since it uses as much as digits as its factorization.

12102605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7215.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12102605 is about 3478.8798484570. The cubic root of 12102605 is about 229.5935164413.

Adding to 12102605 its reverse (50620121), we get a palindrome (62722726).

The spelling of 12102605 in words is "twelve million, one hundred two thousand, six hundred five".