13245881 has 4 divisors (see below), whose sum is σ = 14450064. Its totient is φ = 12041700.

The previous prime is 13245877. The next prime is 13245899. The reversal of 13245881 is 18854231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13245881 - 2² = 13245877 is a prime.

It is a super-2 number, since 2×13245881² = 350906726932322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13245811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602075 + ... + 602096.

It is an arithmetic number, because the mean of its divisors is an integer number (3612516).

Almost surely, 2^13245881 is an apocalyptic number.

13245881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13245881 is a deficient number, since it is larger than the sum of its proper divisors (1204183).

13245881 is a wasteful number, since it uses less digits than its factorization.

13245881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204182.

The product of its digits is 7680, while the sum is 32.

The square root of 13245881 is about 3639.4891124992. The cubic root of 13245881 is about 236.6066516695.

The spelling of 13245881 in words is "thirteen million, two hundred forty-five thousand, eight hundred eighty-one".