13572245 has 4 divisors (see below), whose sum is σ = 16286700. Its totient is φ = 10857792.

The previous prime is 13572227. The next prime is 13572259. The reversal of 13572245 is 54227531.

It is a happy number.

13572245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7879249 + 5692996 = 2807^2 + 2386^2 .

It is a cyclic number.

It is not a de Polignac number, because 13572245 - 2²⁰ = 12523669 is a prime.

It is a congruent 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, 1357220 + ... + 1357229.

It is an arithmetic number, because the mean of its divisors is an integer number (4071675).

Almost surely, 2^13572245 is an apocalyptic number.

It is an amenable number.

13572245 is a deficient number, since it is larger than the sum of its proper divisors (2714455).

13572245 is an equidigital number, since it uses as much as digits as its factorization.

13572245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714454.

The product of its digits is 8400, while the sum is 29.

The square root of 13572245 is about 3684.0527954957. The cubic root of 13572245 is about 238.5341497306.

Adding to 13572245 its reverse (54227531), we get a palindrome (67799776).

The spelling of 13572245 in words is "thirteen million, five hundred seventy-two thousand, two hundred forty-five".