13263745 has 16 divisors (see below), whose sum is σ = 17438400. Its totient is φ = 9604800.

The previous prime is 13263743. The next prime is 13263749. The reversal of 13263745 is 54736231.

It is not a de Polignac number, because 13263745 - 2¹ = 13263743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13263743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18850 + ... + 19540.

It is an arithmetic number, because the mean of its divisors is an integer number (1089900).

Almost surely, 2^13263745 is an apocalyptic number.

It is an amenable number.

13263745 is a deficient number, since it is larger than the sum of its proper divisors (4174655).

13263745 is a wasteful number, since it uses less digits than its factorization.

13263745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056.

The product of its digits is 15120, while the sum is 31.

The square root of 13263745 is about 3641.9424762069. The cubic root of 13263745 is about 236.7129700670.

Adding to 13263745 its reverse (54736231), we get a palindrome (67999976).

The spelling of 13263745 in words is "thirteen million, two hundred sixty-three thousand, seven hundred forty-five".