264372761 has 2 divisors, whose sum is σ = 264372762. Its totient is φ = 264372760.

The previous prime is 264372739. The next prime is 264372769. The reversal of 264372761 is 167273462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224430361 + 39942400 = 14981^2 + 6320^2 .

It is a cyclic number.

It is not a de Polignac number, because 264372761 - 2¹⁴ = 264356377 is a prime.

It is a super-3 number, since 3×264372761³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (264372769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132186380 + 132186381.

It is an arithmetic number, because the mean of its divisors is an integer number (132186381).

Almost surely, 2^264372761 is an apocalyptic number.

It is an amenable number.

264372761 is a deficient number, since it is larger than the sum of its proper divisors (1).

264372761 is an equidigital number, since it uses as much as digits as its factorization.

264372761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 264372761 is about 16259.5436897842. The cubic root of 264372761 is about 641.8086542331.

The spelling of 264372761 in words is "two hundred sixty-four million, three hundred seventy-two thousand, seven hundred sixty-one".