12940533 has 16 divisors (see below), whose sum is σ = 19535040. Its totient is φ = 8463312.

The previous prime is 12940523. The next prime is 12940537. The reversal of 12940533 is 33504921.

12940533 is a `hidden beast` number, since 129 + 4 + 0 + 533 = 666.

It is not a de Polignac number, because 12940533 - 2⁶ = 12940469 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 12940497 and 12940506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12940537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3091 + ... + 5952.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 2^12940533 is an apocalyptic number.

It is an amenable number.

12940533 is a deficient number, since it is larger than the sum of its proper divisors (6594507).

12940533 is an equidigital number, since it uses as much as digits as its factorization.

12940533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9105 (or 9099 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 12940533 is about 3597.2952339223. The cubic root of 12940533 is about 234.7743903860.

The spelling of 12940533 in words is "twelve million, nine hundred forty thousand, five hundred thirty-three".