264722461 has 2 divisors, whose sum is σ = 264722462. Its totient is φ = 264722460.

The previous prime is 264722431. The next prime is 264722473. The reversal of 264722461 is 164227462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262634436 + 2088025 = 16206^2 + 1445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264722461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264722431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132361230 + 132361231.

It is an arithmetic number, because the mean of its divisors is an integer number (132361231).

Almost surely, 2^264722461 is an apocalyptic number.

It is an amenable number.

264722461 is a deficient number, since it is larger than the sum of its proper divisors (1).

264722461 is an equidigital number, since it uses as much as digits as its factorization.

264722461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 264722461 is about 16270.2938203340. The cubic root of 264722461 is about 642.0915144370.

The spelling of 264722461 in words is "two hundred sixty-four million, seven hundred twenty-two thousand, four hundred sixty-one".