13445252 has 12 divisors (see below), whose sum is σ = 23973516. Its totient is φ = 6595680.

The previous prime is 13445251. The next prime is 13445279. The reversal of 13445252 is 25254431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 7761796 = 2384^2 + 2786^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445251) 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, 31499 + ... + 31922.

It is an arithmetic number, because the mean of its divisors is an integer number (1997793).

Almost surely, 2^13445252 is an apocalyptic number.

It is an amenable number.

13445252 is a deficient number, since it is larger than the sum of its proper divisors (10528264).

13445252 is a wasteful number, since it uses less digits than its factorization.

13445252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63478 (or 63476 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 13445252 is about 3666.7767862252. The cubic root of 13445252 is about 237.7878437977.

Adding to 13445252 its reverse (25254431), we get a palindrome (38699683).

The spelling of 13445252 in words is "thirteen million, four hundred forty-five thousand, two hundred fifty-two".