12693533 has 2 divisors, whose sum is σ = 12693534. Its totient is φ = 12693532.

The previous prime is 12693497. The next prime is 12693547. The reversal of 12693533 is 33539621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8922169 + 3771364 = 2987^2 + 1942^2 .

It is a cyclic number.

It is not a de Polignac number, because 12693533 - 2⁶ = 12693469 is a prime.

It is a super-2 number, since 2×12693533² = 322251560044178, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12693533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12693133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6346766 + 6346767.

It is an arithmetic number, because the mean of its divisors is an integer number (6346767).

Almost surely, 2^12693533 is an apocalyptic number.

It is an amenable number.

12693533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12693533 is an equidigital number, since it uses as much as digits as its factorization.

12693533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 32.

The square root of 12693533 is about 3562.7984787243. The cubic root of 12693533 is about 233.2710470935.

The spelling of 12693533 in words is "twelve million, six hundred ninety-three thousand, five hundred thirty-three".