2291481129 has 32 divisors (see below), whose sum is σ = 3630355200. Its totient is φ = 1284681216.

The previous prime is 2291481121. The next prime is 2291481163. The reversal of 2291481129 is 9211841922.

It is not a de Polignac number, because 2291481129 - 2³ = 2291481121 is a prime.

It is a super-2 number, since 2×2291481129² = 10501771529126229282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2291481121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33529 + ... + 75545.

It is an arithmetic number, because the mean of its divisors is an integer number (113448600).

Almost surely, 2^2291481129 is an apocalyptic number.

It is an amenable number.

2291481129 is a deficient number, since it is larger than the sum of its proper divisors (1338874071).

2291481129 is an equidigital number, since it uses as much as digits as its factorization.

2291481129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42094 (or 42080 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 2291481129 is about 47869.4174708655. The cubic root of 2291481129 is about 1318.3744009622.

The spelling of 2291481129 in words is "two billion, two hundred ninety-one million, four hundred eighty-one thousand, one hundred twenty-nine".