12175091553 has 4 divisors (see below), whose sum is σ = 16233455408. Its totient is φ = 8116727700.

The previous prime is 12175091543. The next prime is 12175091563. The reversal of 12175091553 is 35519057121.

12175091553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12175091543) and next prime (12175091563).

It is not a de Polignac number, because 12175091553 - 2⁵ = 12175091521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12175091543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2029181923 + ... + 2029181928.

It is an arithmetic number, because the mean of its divisors is an integer number (4058363852).

Almost surely, 2^12175091553 is an apocalyptic number.

It is an amenable number.

12175091553 is a deficient number, since it is larger than the sum of its proper divisors (4058363855).

12175091553 is an equidigital number, since it uses as much as digits as its factorization.

12175091553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4058363854.

The product of its (nonzero) digits is 47250, while the sum is 39.

The spelling of 12175091553 in words is "twelve billion, one hundred seventy-five million, ninety-one thousand, five hundred fifty-three".