671836131 has 12 divisors (see below), whose sum is σ = 970713120. Its totient is φ = 447760080.

The previous prime is 671836129. The next prime is 671836153. The reversal of 671836131 is 131638176.

671836131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671836131 - 2¹ = 671836129 is a prime.

It is a super-2 number, since 2×671836131² = 902727573834098322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (671836111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29590 + ... + 47108.

It is an arithmetic number, because the mean of its divisors is an integer number (80892760).

Almost surely, 2^671836131 is an apocalyptic number.

671836131 is a deficient number, since it is larger than the sum of its proper divisors (298876989).

671836131 is a wasteful number, since it uses less digits than its factorization.

671836131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21786 (or 21783 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 671836131 is about 25919.8019089653. The cubic root of 671836131 is about 875.8326250247.

It can be divided in two parts, 6718 and 36131, that added together give a square (42849 = 207²).

The spelling of 671836131 in words is "six hundred seventy-one million, eight hundred thirty-six thousand, one hundred thirty-one".