12991153 has 8 divisors (see below), whose sum is σ = 15051008. Its totient is φ = 10982304.

The previous prime is 12991141. The next prime is 12991157. The reversal of 12991153 is 35119921.

It is a happy number.

12991153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12991153 - 2⁹ = 12990641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12991157) 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, 12201 + ... + 13222.

It is an arithmetic number, because the mean of its divisors is an integer number (1881376).

Almost surely, 2^12991153 is an apocalyptic number.

It is an amenable number.

12991153 is a deficient number, since it is larger than the sum of its proper divisors (2059855).

12991153 is an equidigital number, since it uses as much as digits as its factorization.

12991153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25503.

The product of its digits is 2430, while the sum is 31.

The square root of 12991153 is about 3604.3242085029. The cubic root of 12991153 is about 235.0801175447.

The spelling of 12991153 in words is "twelve million, nine hundred ninety-one thousand, one hundred fifty-three".