131662133 has 2 divisors, whose sum is σ = 131662134. Its totient is φ = 131662132.

The previous prime is 131662129. The next prime is 131662147. The reversal of 131662133 is 331266131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107288164 + 24373969 = 10358^2 + 4937^2 .

It is a cyclic number.

It is not a de Polignac number, because 131662133 - 2² = 131662129 is a prime.

It is a super-2 number, since 2×131662133² = 34669834532219378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131662103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65831066 + 65831067.

It is an arithmetic number, because the mean of its divisors is an integer number (65831067).

Almost surely, 2^131662133 is an apocalyptic number.

It is an amenable number.

131662133 is a deficient number, since it is larger than the sum of its proper divisors (1).

131662133 is an equidigital number, since it uses as much as digits as its factorization.

131662133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 131662133 is about 11474.4120982297. The cubic root of 131662133 is about 508.7295470370.

The spelling of 131662133 in words is "one hundred thirty-one million, six hundred sixty-two thousand, one hundred thirty-three".