2164253447 has 2 divisors, whose sum is σ = 2164253448. Its totient is φ = 2164253446.

The previous prime is 2164253431. The next prime is 2164253467. The reversal of 2164253447 is 7443524612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2164253447 - 2⁴ = 2164253431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2164253447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164253467) 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 as a sum of consecutive naturals, namely, 1082126723 + 1082126724.

It is an arithmetic number, because the mean of its divisors is an integer number (1082126724).

Almost surely, 2^2164253447 is an apocalyptic number.

2164253447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164253447 is an equidigital number, since it uses as much as digits as its factorization.

2164253447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 38.

The square root of 2164253447 is about 46521.5374530980. The cubic root of 2164253447 is about 1293.5087552483.

The spelling of 2164253447 in words is "two billion, one hundred sixty-four million, two hundred fifty-three thousand, four hundred forty-seven".