265667461 has 2 divisors, whose sum is σ = 265667462. Its totient is φ = 265667460.

The previous prime is 265667431. The next prime is 265667473. The reversal of 265667461 is 164766562.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220522500 + 45144961 = 14850^2 + 6719^2 .

It is a cyclic number.

It is not a de Polignac number, because 265667461 - 2⁷ = 265667333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265667431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132833730 + 132833731.

It is an arithmetic number, because the mean of its divisors is an integer number (132833731).

Almost surely, 2^265667461 is an apocalyptic number.

It is an amenable number.

265667461 is a deficient number, since it is larger than the sum of its proper divisors (1).

265667461 is an equidigital number, since it uses as much as digits as its factorization.

265667461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 265667461 is about 16299.3086049685. The cubic root of 265667461 is about 642.8546481338.

The spelling of 265667461 in words is "two hundred sixty-five million, six hundred sixty-seven thousand, four hundred sixty-one".