264875641 has 2 divisors, whose sum is σ = 264875642. Its totient is φ = 264875640.

The previous prime is 264875627. The next prime is 264875651. The reversal of 264875641 is 146578462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264875625 + 16 = 16275^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 264875641 - 2¹⁵ = 264842873 is a prime.

It is not a weakly prime, because it can be changed into another prime (264875651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132437820 + 132437821.

It is an arithmetic number, because the mean of its divisors is an integer number (132437821).

Almost surely, 2^264875641 is an apocalyptic number.

It is an amenable number.

264875641 is a deficient number, since it is larger than the sum of its proper divisors (1).

264875641 is an equidigital number, since it uses as much as digits as its factorization.

264875641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The square root of 264875641 is about 16275.0004915515. Note that the first 3 decimals coincide. The cubic root of 264875641 is about 642.2153379727.

The spelling of 264875641 in words is "two hundred sixty-four million, eight hundred seventy-five thousand, six hundred forty-one".