131166851 has 2 divisors, whose sum is σ = 131166852. Its totient is φ = 131166850.

The previous prime is 131166839. The next prime is 131166863. The reversal of 131166851 is 158661131.

It is a balanced prime because it is at equal distance from previous prime (131166839) and next prime (131166863).

It is a cyclic number.

It is not a de Polignac number, because 131166851 - 2⁶ = 131166787 is a prime.

It is not a weakly prime, because it can be changed into another prime (131166811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65583425 + 65583426.

It is an arithmetic number, because the mean of its divisors is an integer number (65583426).

Almost surely, 2^131166851 is an apocalyptic number.

131166851 is a deficient number, since it is larger than the sum of its proper divisors (1).

131166851 is an equidigital number, since it uses as much as digits as its factorization.

131166851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 131166851 is about 11452.8097425916. The cubic root of 131166851 is about 508.0908384790.

The spelling of 131166851 in words is "one hundred thirty-one million, one hundred sixty-six thousand, eight hundred fifty-one".