131227966 has 4 divisors (see below), whose sum is σ = 196841952. Its totient is φ = 65613982.

The previous prime is 131227933. The next prime is 131227973. The reversal of 131227966 is 669722131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669722131 = 13 ⋅51517087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32806990 + ... + 32806993.

It is an arithmetic number, because the mean of its divisors is an integer number (49210488).

Almost surely, 2^131227966 is an apocalyptic number.

131227966 is a deficient number, since it is larger than the sum of its proper divisors (65613986).

131227966 is an equidigital number, since it uses as much as digits as its factorization.

131227966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65613985.

The product of its digits is 27216, while the sum is 37.

The square root of 131227966 is about 11455.4775544278. The cubic root of 131227966 is about 508.1697383685.

The spelling of 131227966 in words is "one hundred thirty-one million, two hundred twenty-seven thousand, nine hundred sixty-six".