2164263239 has 2 divisors, whose sum is σ = 2164263240. Its totient is φ = 2164263238.

The previous prime is 2164263209. The next prime is 2164263253. The reversal of 2164263239 is 9323624612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164263239 - 2⁸ = 2164262983 is a prime.

It is a super-2 number, since 2×2164263239² = 9368070735373542242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164263209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082131619 + 1082131620.

It is an arithmetic number, because the mean of its divisors is an integer number (1082131620).

Almost surely, 2^2164263239 is an apocalyptic number.

2164263239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164263239 is an equidigital number, since it uses as much as digits as its factorization.

2164263239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 2164263239 is about 46521.6426945567. The cubic root of 2164263239 is about 1293.5107060393.

The spelling of 2164263239 in words is "two billion, one hundred sixty-four million, two hundred sixty-three thousand, two hundred thirty-nine".