12155793 has 8 divisors (see below), whose sum is σ = 17454528. Its totient is φ = 7480464.

The previous prime is 12155791. The next prime is 12155797. The reversal of 12155793 is 39755121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12155793 - 2¹ = 12155791 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12155791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155805 + ... + 155882.

It is an arithmetic number, because the mean of its divisors is an integer number (2181816).

Almost surely, 2^12155793 is an apocalyptic number.

12155793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12155793 is a deficient number, since it is larger than the sum of its proper divisors (5298735).

12155793 is a wasteful number, since it uses less digits than its factorization.

12155793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311703.

The product of its digits is 9450, while the sum is 33.

The square root of 12155793 is about 3486.5158826542. The cubic root of 12155793 is about 229.9293607897.

The spelling of 12155793 in words is "twelve million, one hundred fifty-five thousand, seven hundred ninety-three".