2290891651 has 4 divisors (see below), whose sum is σ = 2296936600. Its totient is φ = 2284846704.

The previous prime is 2290891643. The next prime is 2290891703. The reversal of 2290891651 is 1561980922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2290891651 - 2³ = 2290891643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2290891598 and 2290891607.

It is not an unprimeable number, because it can be changed into a prime (2290871651) 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 3 ways as a sum of consecutive naturals, for example, 3021906 + ... + 3022663.

It is an arithmetic number, because the mean of its divisors is an integer number (574234150).

Almost surely, 2^2290891651 is an apocalyptic number.

2290891651 is a deficient number, since it is larger than the sum of its proper divisors (6044949).

2290891651 is an equidigital number, since it uses as much as digits as its factorization.

2290891651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6044948.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 2290891651 is about 47863.2599286760. The cubic root of 2290891651 is about 1318.2613417207.

The spelling of 2290891651 in words is "two billion, two hundred ninety million, eight hundred ninety-one thousand, six hundred fifty-one".