13253623 has 4 divisors (see below), whose sum is σ = 13261120. Its totient is φ = 13246128.

The previous prime is 13253587. The next prime is 13253627. The reversal of 13253623 is 32635231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32635231 = 67 ⋅487093.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13253623 is a prime.

It is a super-2 number, since 2×13253623² = 351317045252258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13253627) 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, 538 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (3315280).

Almost surely, 2^13253623 is an apocalyptic number.

13253623 is a deficient number, since it is larger than the sum of its proper divisors (7497).

13253623 is an equidigital number, since it uses as much as digits as its factorization.

13253623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496.

The product of its digits is 3240, while the sum is 25.

The square root of 13253623 is about 3640.5525679490. The cubic root of 13253623 is about 236.6527402592.

Adding to 13253623 its reverse (32635231), we get a palindrome (45888854).

The spelling of 13253623 in words is "thirteen million, two hundred fifty-three thousand, six hundred twenty-three".