265631461 has 4 divisors (see below), whose sum is σ = 265681312. Its totient is φ = 265581612.

The previous prime is 265631453. The next prime is 265631489. The reversal of 265631461 is 164136562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 265631461 - 2³ = 265631453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265631411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15825 + ... + 27958.

It is an arithmetic number, because the mean of its divisors is an integer number (66420328).

Almost surely, 2^265631461 is an apocalyptic number.

It is an amenable number.

265631461 is a deficient number, since it is larger than the sum of its proper divisors (49851).

265631461 is an equidigital number, since it uses as much as digits as its factorization.

265631461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49850.

The product of its digits is 25920, while the sum is 34.

The square root of 265631461 is about 16298.2042262330. The cubic root of 265631461 is about 642.8256095597.

The spelling of 265631461 in words is "two hundred sixty-five million, six hundred thirty-one thousand, four hundred sixty-one".