13162505 has 12 divisors (see below), whose sum is σ = 16780620. Its totient is φ = 9909504.

The previous prime is 13162489. The next prime is 13162529. The reversal of 13162505 is 50526131.

It can be written as a sum of positive squares in 6 ways, for example, as 121 + 13162384 = 11^2 + 3628^2 .

It is not a de Polignac number, because 13162505 - 2⁴ = 13162489 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3110 + ... + 5999.

It is an arithmetic number, because the mean of its divisors is an integer number (1398385).

Almost surely, 2^13162505 is an apocalyptic number.

It is an amenable number.

13162505 is a deficient number, since it is larger than the sum of its proper divisors (3618115).

13162505 is an equidigital number, since it uses as much as digits as its factorization.

13162505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148 (or 9131 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13162505 is about 3628.0166758161. The cubic root of 13162505 is about 236.1091673914.

Adding to 13162505 its reverse (50526131), we get a palindrome (63688636).

The spelling of 13162505 in words is "thirteen million, one hundred sixty-two thousand, five hundred five".