13255145 has 8 divisors (see below), whose sum is σ = 15988104. Its totient is φ = 10549504.

The previous prime is 13255127. The next prime is 13255157. The reversal of 13255145 is 54155231.

It can be written as a sum of positive squares in 4 ways, for example, as 9709456 + 3545689 = 3116^2 + 1883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13255145 - 2⁸ = 13254889 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 5744 + ... + 7713.

It is an arithmetic number, because the mean of its divisors is an integer number (1998513).

Almost surely, 2^13255145 is an apocalyptic number.

It is an amenable number.

13255145 is a deficient number, since it is larger than the sum of its proper divisors (2732959).

13255145 is a wasteful number, since it uses less digits than its factorization.

13255145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13659.

The product of its digits is 3000, while the sum is 26.

The square root of 13255145 is about 3640.7615961499. The cubic root of 13255145 is about 236.6617987052.

The spelling of 13255145 in words is "thirteen million, two hundred fifty-five thousand, one hundred forty-five".