13539465 has 12 divisors (see below), whose sum is σ = 23468484. Its totient is φ = 7221024.

The previous prime is 13539451. The next prime is 13539511. The reversal of 13539465 is 56493531.

It can be written as a sum of positive squares in 2 ways, for example, as 2108304 + 11431161 = 1452^2 + 3381^2 .

It is not a de Polignac number, because 13539465 - 2⁶ = 13539401 is a prime.

It is a super-2 number, since 2×13539465² = 366634224972450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150394 + ... + 150483.

It is an arithmetic number, because the mean of its divisors is an integer number (1955707).

Almost surely, 2^13539465 is an apocalyptic number.

13539465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13539465 is a deficient number, since it is larger than the sum of its proper divisors (9929019).

13539465 is a wasteful number, since it uses less digits than its factorization.

13539465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300888 (or 300885 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 13539465 is about 3679.6012012173. The cubic root of 13539465 is about 238.3419571866.

The spelling of 13539465 in words is "thirteen million, five hundred thirty-nine thousand, four hundred sixty-five".