2164235431 has 2 divisors, whose sum is σ = 2164235432. Its totient is φ = 2164235430.

The previous prime is 2164235401. The next prime is 2164235441. The reversal of 2164235431 is 1345324612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2164235431 is a prime.

It is a super-2 number, since 2×2164235431² = 9367830001591511522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2164235393 and 2164235402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164235401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082117715 + 1082117716.

It is an arithmetic number, because the mean of its divisors is an integer number (1082117716).

Almost surely, 2^2164235431 is an apocalyptic number.

2164235431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164235431 is an equidigital number, since it uses as much as digits as its factorization.

2164235431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 2164235431 is about 46521.3438219491. The cubic root of 2164235431 is about 1293.5051660324.

The spelling of 2164235431 in words is "two billion, one hundred sixty-four million, two hundred thirty-five thousand, four hundred thirty-one".