131871767 has 2 divisors, whose sum is σ = 131871768. Its totient is φ = 131871766.

The previous prime is 131871763. The next prime is 131871821. The reversal of 131871767 is 767178131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131871767 - 2² = 131871763 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131871763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65935883 + 65935884.

It is an arithmetic number, because the mean of its divisors is an integer number (65935884).

Almost surely, 2^131871767 is an apocalyptic number.

131871767 is a deficient number, since it is larger than the sum of its proper divisors (1).

131871767 is an equidigital number, since it uses as much as digits as its factorization.

131871767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 41.

The square root of 131871767 is about 11483.5433120618. The cubic root of 131871767 is about 508.9994055906. Note that the first 3 decimals are identical.

The spelling of 131871767 in words is "one hundred thirty-one million, eight hundred seventy-one thousand, seven hundred sixty-seven".