8461187231 has 8 divisors (see below), whose sum is σ = 9765670944. Its totient is φ = 7180639200.

The previous prime is 8461187209. The next prime is 8461187237. The reversal of 8461187231 is 1327811648.

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

It is not a de Polignac number, because 8461187231 - 2¹⁰ = 8461186207 is a prime.

It is a super-2 number, since 2×8461187231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461187237) 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, 5983160 + ... + 5984573.

It is an arithmetic number, because the mean of its divisors is an integer number (1220708868).

Almost surely, 2^8461187231 is an apocalyptic number.

8461187231 is a deficient number, since it is larger than the sum of its proper divisors (1304483713).

8461187231 is a wasteful number, since it uses less digits than its factorization.

8461187231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11967841.

The product of its digits is 64512, while the sum is 41.

The square root of 8461187231 is about 91984.7119417134. The cubic root of 8461187231 is about 2037.7165298429.

Adding to 8461187231 its reverse (1327811648), we get a palindrome (9788998879).

The spelling of 8461187231 in words is "eight billion, four hundred sixty-one million, one hundred eighty-seven thousand, two hundred thirty-one".