13257075 has 24 divisors (see below), whose sum is σ = 23606128. Its totient is φ = 6526080.

The previous prime is 13257073. The next prime is 13257077. The reversal of 13257075 is 57075231.

13257075 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 is an interprime number because it is at equal distance from previous prime (13257073) and next prime (13257077).

It is not a de Polignac number, because 13257075 - 2¹ = 13257073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13257073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5824 + ... + 7773.

Almost surely, 2^13257075 is an apocalyptic number.

13257075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13257075 is a deficient number, since it is larger than the sum of its proper divisors (10349053).

13257075 is a wasteful number, since it uses less digits than its factorization.

13257075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13623 (or 13618 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 13257075 is about 3641.0266409352. The cubic root of 13257075 is about 236.6732844366.

The spelling of 13257075 in words is "thirteen million, two hundred fifty-seven thousand, seventy-five".