13163265 has 12 divisors (see below), whose sum is σ = 22816404. Its totient is φ = 7020384.

The previous prime is 13163261. The next prime is 13163279. The reversal of 13163265 is 56236131.

It can be written as a sum of positive squares in 2 ways, for example, as 6066369 + 7096896 = 2463^2 + 2664^2 .

It is not a de Polignac number, because 13163265 - 2² = 13163261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13163261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146214 + ... + 146303.

It is an arithmetic number, because the mean of its divisors is an integer number (1901367).

Almost surely, 2^13163265 is an apocalyptic number.

13163265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13163265 is a deficient number, since it is larger than the sum of its proper divisors (9653139).

13163265 is a wasteful number, since it uses less digits than its factorization.

13163265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292528 (or 292525 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 13163265 is about 3628.1214147269. The cubic root of 13163265 is about 236.1137116002.

Adding to 13163265 its reverse (56236131), we get a palindrome (69399396).

The spelling of 13163265 in words is "thirteen million, one hundred sixty-three thousand, two hundred sixty-five".