461281971 has 4 divisors (see below), whose sum is σ = 615042632. Its totient is φ = 307521312.

The previous prime is 461281957. The next prime is 461281987. The reversal of 461281971 is 179182164.

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

It is not a de Polignac number, because 461281971 - 2¹⁰ = 461280947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461281921) 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, 76880326 + ... + 76880331.

It is an arithmetic number, because the mean of its divisors is an integer number (153760658).

Almost surely, 2^461281971 is an apocalyptic number.

461281971 is a deficient number, since it is larger than the sum of its proper divisors (153760661).

461281971 is a wasteful number, since it uses less digits than its factorization.

461281971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153760660.

The product of its digits is 24192, while the sum is 39.

The square root of 461281971 is about 21477.4758991833. The cubic root of 461281971 is about 772.6607066077.

The spelling of 461281971 in words is "four hundred sixty-one million, two hundred eighty-one thousand, nine hundred seventy-one".