13257045 has 24 divisors (see below), whose sum is σ = 23142912. Its totient is φ = 7020000.

The previous prime is 13257043. The next prime is 13257061. The reversal of 13257045 is 54075231.

It is a happy number.

It is not a de Polignac number, because 13257045 - 2¹ = 13257043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13257043) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5820 + ... + 7770.

It is an arithmetic number, because the mean of its divisors is an integer number (964288).

Almost surely, 2^13257045 is an apocalyptic number.

13257045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13257045 is a deficient number, since it is larger than the sum of its proper divisors (9885867).

13257045 is a wasteful number, since it uses less digits than its factorization.

13257045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 13257045 is about 3641.0225212157. The cubic root of 13257045 is about 236.6731059105.

The spelling of 13257045 in words is "thirteen million, two hundred fifty-seven thousand, forty-five".