12533913 has 64 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 6518016.

The previous prime is 12533893. The next prime is 12533957. The reversal of 12533913 is 31933521.

It is a happy number.

12533913 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12533913 - 2⁸ = 12533657 is a prime.

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

12533913 is strictly pandigital in base 8.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12533513) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150970 + ... + 151052.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^12533913 is an apocalyptic number.

It is an amenable number.

12533913 is a deficient number, since it is larger than the sum of its proper divisors (10690407).

12533913 is a wasteful number, since it uses less digits than its factorization.

12533913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 157 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 12533913 is about 3540.3266798418. The cubic root of 12533913 is about 232.2891324312.

The spelling of 12533913 in words is "twelve million, five hundred thirty-three thousand, nine hundred thirteen".