2156288353 has 4 divisors (see below), whose sum is σ = 2165310720. Its totient is φ = 2147265988.

The previous prime is 2156288327. The next prime is 2156288401. The reversal of 2156288353 is 3538826512.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2156288353 is a prime.

It is a super-2 number, since 2×2156288353² = 9299158922566905218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2156288053) 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 3 ways as a sum of consecutive naturals, for example, 4510825 + ... + 4511302.

It is an arithmetic number, because the mean of its divisors is an integer number (541327680).

Almost surely, 2^2156288353 is an apocalyptic number.

It is an amenable number.

2156288353 is a deficient number, since it is larger than the sum of its proper divisors (9022367).

2156288353 is an equidigital number, since it uses as much as digits as its factorization.

2156288353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9022366.

The product of its digits is 345600, while the sum is 43.

The square root of 2156288353 is about 46435.8520219022. The cubic root of 2156288353 is about 1291.9199727499.

The spelling of 2156288353 in words is "two billion, one hundred fifty-six million, two hundred eighty-eight thousand, three hundred fifty-three".