461209965 has 16 divisors (see below), whose sum is σ = 748331136. Its totient is φ = 242513600.

The previous prime is 461209963. The next prime is 461209999. The reversal of 461209965 is 569902164.

It is a happy number.

It is not a de Polignac number, because 461209965 - 2¹ = 461209963 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461209963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215466 + ... + 217595.

It is an arithmetic number, because the mean of its divisors is an integer number (46770696).

Almost surely, 2^461209965 is an apocalyptic number.

It is an amenable number.

461209965 is a deficient number, since it is larger than the sum of its proper divisors (287121171).

461209965 is a wasteful number, since it uses less digits than its factorization.

461209965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433140.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 461209965 is about 21475.7995194591. The cubic root of 461209965 is about 772.6205004680.

It can be divided in two parts, 4612099 and 65, that added together give a palindrome (4612164).

The spelling of 461209965 in words is "four hundred sixty-one million, two hundred nine thousand, nine hundred sixty-five".