12693018 has 16 divisors (see below), whose sum is σ = 27338976. Its totient is φ = 3905520.

The previous prime is 12693017. The next prime is 12693019. The reversal of 12693018 is 81039621.

It is an interprime number because it is at equal distance from previous prime (12693017) and next prime (12693019).

It is a super-2 number, since 2×12693018² = 322225411896648, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12693013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81288 + ... + 81443.

It is an arithmetic number, because the mean of its divisors is an integer number (1708686).

Almost surely, 2^12693018 is an apocalyptic number.

12693018 is an abundant number, since it is smaller than the sum of its proper divisors (14645958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12693018 is a wasteful number, since it uses less digits than its factorization.

12693018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162749.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 12693018 is about 3562.7262033448. The cubic root of 12693018 is about 233.2678923056.

The spelling of 12693018 in words is "twelve million, six hundred ninety-three thousand, eighteen".