164231311 has 2 divisors, whose sum is σ = 164231312. Its totient is φ = 164231310.

The previous prime is 164231297. The next prime is 164231323. The reversal of 164231311 is 113132461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164231311 - 2¹³ = 164223119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164231341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82115655 + 82115656.

It is an arithmetic number, because the mean of its divisors is an integer number (82115656).

Almost surely, 2^164231311 is an apocalyptic number.

164231311 is a deficient number, since it is larger than the sum of its proper divisors (1).

164231311 is an equidigital number, since it uses as much as digits as its factorization.

164231311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 164231311 is about 12815.2764699011. The cubic root of 164231311 is about 547.6275896493.

Adding to 164231311 its reverse (113132461), we get a palindrome (277363772).

The spelling of 164231311 in words is "one hundred sixty-four million, two hundred thirty-one thousand, three hundred eleven".