264817481 has 2 divisors, whose sum is σ = 264817482. Its totient is φ = 264817480.

The previous prime is 264817477. The next prime is 264817493. The reversal of 264817481 is 184718462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264355081 + 462400 = 16259^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 264817481 - 2² = 264817477 is a prime.

It is a super-2 number, since 2×264817481² = 140256596486370722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (264817181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132408740 + 132408741.

It is an arithmetic number, because the mean of its divisors is an integer number (132408741).

Almost surely, 2^264817481 is an apocalyptic number.

It is an amenable number.

264817481 is a deficient number, since it is larger than the sum of its proper divisors (1).

264817481 is an equidigital number, since it uses as much as digits as its factorization.

264817481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 41.

The square root of 264817481 is about 16273.2136039567. The cubic root of 264817481 is about 642.1683297766.

The spelling of 264817481 in words is "two hundred sixty-four million, eight hundred seventeen thousand, four hundred eighty-one".