12453655 has 4 divisors (see below), whose sum is σ = 14944392. Its totient is φ = 9962920.

The previous prime is 12453653. The next prime is 12453659. The reversal of 12453655 is 55635421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12453655 - 2¹ = 12453653 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12453653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1245361 + ... + 1245370.

It is an arithmetic number, because the mean of its divisors is an integer number (3736098).

Almost surely, 2^12453655 is an apocalyptic number.

12453655 is a deficient number, since it is larger than the sum of its proper divisors (2490737).

12453655 is an equidigital number, since it uses as much as digits as its factorization.

12453655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490736.

The product of its digits is 18000, while the sum is 31.

The square root of 12453655 is about 3528.9736468271. The cubic root of 12453655 is about 231.7922672324.

It can be divided in two parts, 1245 and 3655, that added together give a square (4900 = 70²).

The spelling of 12453655 in words is "twelve million, four hundred fifty-three thousand, six hundred fifty-five".