12155683 has 4 divisors (see below), whose sum is σ = 12163168. Its totient is φ = 12148200.

The previous prime is 12155677. The next prime is 12155723. The reversal of 12155683 is 38655121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 38655121 = 37 ⋅1044733.

It is a cyclic number.

It is not a de Polignac number, because 12155683 - 2¹⁷ = 12024611 is a prime.

It is the 3487-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12155183) by changing a digit.

It is a nontrivial repunit in base 3486.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (3040792).

Almost surely, 2^12155683 is an apocalyptic number.

12155683 is a deficient number, since it is larger than the sum of its proper divisors (7485).

12155683 is an equidigital number, since it uses as much as digits as its factorization.

12155683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7484.

The product of its digits is 7200, while the sum is 31.

The square root of 12155683 is about 3486.5001075577. The cubic root of 12155683 is about 229.9286672299.

The spelling of 12155683 in words is "twelve million, one hundred fifty-five thousand, six hundred eighty-three".