868304131 has 2 divisors, whose sum is σ = 868304132. Its totient is φ = 868304130.

The previous prime is 868304083. The next prime is 868304159. The reversal of 868304131 is 131403868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868304131 - 2¹⁵ = 868271363 is a prime.

It is a super-2 number, since 2×868304131² = 1507904127823330322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (868304431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434152065 + 434152066.

It is an arithmetic number, because the mean of its divisors is an integer number (434152066).

Almost surely, 2^868304131 is an apocalyptic number.

868304131 is a deficient number, since it is larger than the sum of its proper divisors (1).

868304131 is an equidigital number, since it uses as much as digits as its factorization.

868304131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 868304131 is about 29467.0007126616. Note that the first 3 decimals coincide. The cubic root of 868304131 is about 954.0195820835.

Adding to 868304131 its reverse (131403868), we get a palindrome (999707999).

The spelling of 868304131 in words is "eight hundred sixty-eight million, three hundred four thousand, one hundred thirty-one".