465316561 has 4 divisors (see below), whose sum is σ = 467678772. Its totient is φ = 462954352.

The previous prime is 465316559. The next prime is 465316567. The reversal of 465316561 is 165613564.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 351787536 + 113529025 = 18756^2 + 10655^2 .

It is a cyclic number.

It is not a de Polignac number, because 465316561 - 2¹ = 465316559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 465316561.

It is not an unprimeable number, because it can be changed into a prime (465316567) 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, 1180810 + ... + 1181203.

It is an arithmetic number, because the mean of its divisors is an integer number (116919693).

Almost surely, 2^465316561 is an apocalyptic number.

It is an amenable number.

465316561 is a deficient number, since it is larger than the sum of its proper divisors (2362211).

465316561 is a wasteful number, since it uses less digits than its factorization.

465316561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362210.

The product of its digits is 64800, while the sum is 37.

The square root of 465316561 is about 21571.1974864633. The cubic root of 465316561 is about 774.9068558193.

The spelling of 465316561 in words is "four hundred sixty-five million, three hundred sixteen thousand, five hundred sixty-one".