13497533 has 4 divisors (see below), whose sum is σ = 15425760. Its totient is φ = 11569308.

The previous prime is 13497529. The next prime is 13497551. The reversal of 13497533 is 33579431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33579431 = 43 ⋅780917.

It is a cyclic number.

It is not a de Polignac number, because 13497533 - 2² = 13497529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13497493 and 13497502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13497503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964103 + ... + 964116.

It is an arithmetic number, because the mean of its divisors is an integer number (3856440).

Almost surely, 2^13497533 is an apocalyptic number.

It is an amenable number.

13497533 is a deficient number, since it is larger than the sum of its proper divisors (1928227).

13497533 is an equidigital number, since it uses as much as digits as its factorization.

13497533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928226.

The product of its digits is 34020, while the sum is 35.

The square root of 13497533 is about 3673.8988826586. The cubic root of 13497533 is about 238.0956527694.

The spelling of 13497533 in words is "thirteen million, four hundred ninety-seven thousand, five hundred thirty-three".