12533999 has 8 divisors (see below), whose sum is σ = 12743472. Its totient is φ = 12326400.

The previous prime is 12533957. The next prime is 12534001. The reversal of 12533999 is 99933521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12533999 - 2²⁰ = 11485423 is a prime.

It is a super-2 number, since 2×12533999² = 314202261864002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19172 + ... + 19814.

It is an arithmetic number, because the mean of its divisors is an integer number (1592934).

Almost surely, 2^12533999 is an apocalyptic number.

12533999 is a deficient number, since it is larger than the sum of its proper divisors (209473).

12533999 is a wasteful number, since it uses less digits than its factorization.

12533999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937.

The product of its digits is 65610, while the sum is 41.

The square root of 12533999 is about 3540.3388255928. The cubic root of 12533999 is about 232.2896637050.

The spelling of 12533999 in words is "twelve million, five hundred thirty-three thousand, nine hundred ninety-nine".