13500297 has 16 divisors (see below), whose sum is σ = 20191680. Its totient is φ = 8914176.

The previous prime is 13500281. The next prime is 13500307. The reversal of 13500297 is 79200531.

It is not a de Polignac number, because 13500297 - 2⁴ = 13500281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13500297.

It is not an unprimeable number, because it can be changed into a prime (13500997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553 + ... + 5225.

It is an arithmetic number, because the mean of its divisors is an integer number (1261980).

Almost surely, 2^13500297 is an apocalyptic number.

It is an amenable number.

13500297 is a deficient number, since it is larger than the sum of its proper divisors (6691383).

13500297 is a wasteful number, since it uses less digits than its factorization.

13500297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789 (or 4783 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 13500297 is about 3674.2750305332. The cubic root of 13500297 is about 238.1119039236. Note that the first 3 decimals are identical.

The spelling of 13500297 in words is "thirteen million, five hundred thousand, two hundred ninety-seven".