461531811 has 16 divisors (see below), whose sum is σ = 663138560. Its totient is φ = 283836960.

The previous prime is 461531789. The next prime is 461531849. The reversal of 461531811 is 118135164.

It is not a de Polignac number, because 461531811 - 2⁷ = 461531683 is a prime.

It is a super-3 number, since 3×461531811³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461531891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82266 + ... + 87696.

It is an arithmetic number, because the mean of its divisors is an integer number (41446160).

Almost surely, 2^461531811 is an apocalyptic number.

461531811 is a deficient number, since it is larger than the sum of its proper divisors (201606749).

461531811 is a wasteful number, since it uses less digits than its factorization.

461531811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626.

The product of its digits is 2880, while the sum is 30.

The square root of 461531811 is about 21483.2914377662. The cubic root of 461531811 is about 772.8001778507.

Adding to 461531811 its reverse (118135164), we get a palindrome (579666975).

The spelling of 461531811 in words is "four hundred sixty-one million, five hundred thirty-one thousand, eight hundred eleven".