264746243 has 2 divisors, whose sum is σ = 264746244. Its totient is φ = 264746242.

The previous prime is 264746233. The next prime is 264746257. The reversal of 264746243 is 342647462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264746243 - 2¹² = 264742147 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 264746197 and 264746206.

It is not a weakly prime, because it can be changed into another prime (264746203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132373121 + 132373122.

It is an arithmetic number, because the mean of its divisors is an integer number (132373122).

Almost surely, 2^264746243 is an apocalyptic number.

264746243 is a deficient number, since it is larger than the sum of its proper divisors (1).

264746243 is an equidigital number, since it uses as much as digits as its factorization.

264746243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 38.

The square root of 264746243 is about 16271.0246450554. The cubic root of 264746243 is about 642.1107418234.

The spelling of 264746243 in words is "two hundred sixty-four million, seven hundred forty-six thousand, two hundred forty-three".