465146561 has 8 divisors (see below), whose sum is σ = 510840000. Its totient is φ = 420021040.

The previous prime is 465146551. The next prime is 465146587. The reversal of 465146561 is 165641564.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 465146561 - 2¹⁸ = 464884417 is a prime.

It is a super-2 number, since 2×465146561² = 432722646420253442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (465146551) 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, 140261 + ... + 143538.

It is an arithmetic number, because the mean of its divisors is an integer number (63855000).

Almost surely, 2^465146561 is an apocalyptic number.

It is an amenable number.

465146561 is a deficient number, since it is larger than the sum of its proper divisors (45693439).

465146561 is a wasteful number, since it uses less digits than its factorization.

465146561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283959.

The product of its digits is 86400, while the sum is 38.

The square root of 465146561 is about 21567.2566869317. The cubic root of 465146561 is about 774.8124754752.

The spelling of 465146561 in words is "four hundred sixty-five million, one hundred forty-six thousand, five hundred sixty-one".