264412561 has 8 divisors (see below), whose sum is σ = 302290560. Its totient is φ = 226560768.

The previous prime is 264412529. The next prime is 264412579. The reversal of 264412561 is 165214462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264412561 - 2⁵ = 264412529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264412501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25620 + ... + 34426.

It is an arithmetic number, because the mean of its divisors is an integer number (37786320).

Almost surely, 2^264412561 is an apocalyptic number.

It is an amenable number.

264412561 is a deficient number, since it is larger than the sum of its proper divisors (37877999).

264412561 is an equidigital number, since it uses as much as digits as its factorization.

264412561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103.

The product of its digits is 11520, while the sum is 31.

The square root of 264412561 is about 16260.7675403100. The cubic root of 264412561 is about 641.8408596472.

The spelling of 264412561 in words is "two hundred sixty-four million, four hundred twelve thousand, five hundred sixty-one".