12499533 has 6 divisors (see below), whose sum is σ = 18054894. Its totient is φ = 8333016.

The previous prime is 12499523. The next prime is 12499537. The reversal of 12499533 is 33599421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11985444 + 514089 = 3462^2 + 717^2 .

It is not a de Polignac number, because 12499533 - 2⁹ = 12499021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 694410 + ... + 694427.

It is an arithmetic number, because the mean of its divisors is an integer number (3009149).

Almost surely, 2^12499533 is an apocalyptic number.

It is an amenable number.

12499533 is a deficient number, since it is larger than the sum of its proper divisors (5555361).

12499533 is a wasteful number, since it uses less digits than its factorization.

12499533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388843 (or 1388840 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 12499533 is about 3535.4678615425. The cubic root of 12499533 is about 232.0765514820.

The spelling of 12499533 in words is "twelve million, four hundred ninety-nine thousand, five hundred thirty-three".