13245481 has 4 divisors (see below), whose sum is σ = 13256964. Its totient is φ = 13234000.

The previous prime is 13245473. The next prime is 13245509. The reversal of 13245481 is 18454231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2624400 + 10621081 = 1620^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245481 - 2³ = 13245473 is a prime.

It is a super-2 number, since 2×13245481² = 350885533842722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13245581) 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, 3790 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (3314241).

Almost surely, 2^13245481 is an apocalyptic number.

It is an amenable number.

13245481 is a deficient number, since it is larger than the sum of its proper divisors (11483).

13245481 is a wasteful number, since it uses less digits than its factorization.

13245481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11482.

The product of its digits is 3840, while the sum is 28.

The square root of 13245481 is about 3639.4341593165. The cubic root of 13245481 is about 236.6042699577.

The spelling of 13245481 in words is "thirteen million, two hundred forty-five thousand, four hundred eighty-one".