464113561 has 4 divisors (see below), whose sum is σ = 464200912. Its totient is φ = 464026212.

The previous prime is 464113547. The next prime is 464113591. The reversal of 464113561 is 165311464.

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 464113561 - 2²¹ = 462016409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464113511) 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, 35151 + ... + 46516.

It is an arithmetic number, because the mean of its divisors is an integer number (116050228).

Almost surely, 2^464113561 is an apocalyptic number.

It is an amenable number.

464113561 is a deficient number, since it is larger than the sum of its proper divisors (87351).

464113561 is an equidigital number, since it uses as much as digits as its factorization.

464113561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87350.

The product of its digits is 8640, while the sum is 31.

The square root of 464113561 is about 21543.2950358110. The cubic root of 464113561 is about 774.2384811091.

The spelling of 464113561 in words is "four hundred sixty-four million, one hundred thirteen thousand, five hundred sixty-one".