13251285 has 24 divisors (see below), whose sum is σ = 23058360. Its totient is φ = 7039872.

The previous prime is 13251263. The next prime is 13251311. The reversal of 13251285 is 58215231.

It is a happy number.

13251285 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 762129 + 12489156 = 873^2 + 3534^2 .

It is not a de Polignac number, because 13251285 - 2⁵ = 13251253 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17127 + ... + 17883.

It is an arithmetic number, because the mean of its divisors is an integer number (960765).

Almost surely, 2^13251285 is an apocalyptic number.

13251285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13251285 is a deficient number, since it is larger than the sum of its proper divisors (9807075).

13251285 is a wasteful number, since it uses less digits than its factorization.

13251285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1154 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 13251285 is about 3640.2314486856. The cubic root of 13251285 is about 236.6388238973.

The spelling of 13251285 in words is "thirteen million, two hundred fifty-one thousand, two hundred eighty-five".