264682381 has 2 divisors, whose sum is σ = 264682382. Its totient is φ = 264682380.

The previous prime is 264682337. The next prime is 264682393. The reversal of 264682381 is 183286462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241305156 + 23377225 = 15534^2 + 4835^2 .

It is a cyclic number.

It is not a de Polignac number, because 264682381 - 2¹¹ = 264680333 is a prime.

It is a super-2 number, since 2×264682381² = 140113525623658322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264682081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132341190 + 132341191.

It is an arithmetic number, because the mean of its divisors is an integer number (132341191).

Almost surely, 2^264682381 is an apocalyptic number.

It is an amenable number.

264682381 is a deficient number, since it is larger than the sum of its proper divisors (1).

264682381 is an equidigital number, since it uses as much as digits as its factorization.

264682381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 40.

The square root of 264682381 is about 16269.0620811404. The cubic root of 264682381 is about 642.0591077588.

The spelling of 264682381 in words is "two hundred sixty-four million, six hundred eighty-two thousand, three hundred eighty-one".