465515641 has 4 divisors (see below), whose sum is σ = 492898932. Its totient is φ = 438132352.

The previous prime is 465515629. The next prime is 465515651. The reversal of 465515641 is 146515564.

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 404613225 + 60902416 = 20115^2 + 7804^2 .

It is a cyclic number.

It is not a de Polignac number, because 465515641 - 2²⁵ = 431961209 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 465515641.

It is not an unprimeable number, because it can be changed into a prime (465515651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13691620 + ... + 13691653.

It is an arithmetic number, because the mean of its divisors is an integer number (123224733).

Almost surely, 2^465515641 is an apocalyptic number.

It is an amenable number.

465515641 is a deficient number, since it is larger than the sum of its proper divisors (27383291).

465515641 is a wasteful number, since it uses less digits than its factorization.

465515641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27383290.

The product of its digits is 72000, while the sum is 37.

The square root of 465515641 is about 21575.8114795249. The cubic root of 465515641 is about 775.0173515366.

The spelling of 465515641 in words is "four hundred sixty-five million, five hundred fifteen thousand, six hundred forty-one".