12254665 has 4 divisors (see below), whose sum is σ = 14705604. Its totient is φ = 9803728.

The previous prime is 12254663. The next prime is 12254681. The reversal of 12254665 is 56645221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56645221 = 2557 ⋅22153.

It can be written as a sum of positive squares in 2 ways, for example, as 4052169 + 8202496 = 2013^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 12254665 - 2¹ = 12254663 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12254663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225462 + ... + 1225471.

It is an arithmetic number, because the mean of its divisors is an integer number (3676401).

Almost surely, 2^12254665 is an apocalyptic number.

It is an amenable number.

12254665 is a deficient number, since it is larger than the sum of its proper divisors (2450939).

12254665 is an equidigital number, since it uses as much as digits as its factorization.

12254665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450938.

The product of its digits is 14400, while the sum is 31.

The square root of 12254665 is about 3500.6663651368. Note that the first 3 decimals coincide. The cubic root of 12254665 is about 230.5510730461.

Adding to 12254665 its reverse (56645221), we get a palindrome (68899886).

The spelling of 12254665 in words is "twelve million, two hundred fifty-four thousand, six hundred sixty-five".