131646133 has 2 divisors, whose sum is σ = 131646134. Its totient is φ = 131646132.

The previous prime is 131646131. The next prime is 131646149. The reversal of 131646133 is 331646131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109348849 + 22297284 = 10457^2 + 4722^2 .

It is a cyclic number.

It is not a de Polignac number, because 131646133 - 2¹ = 131646131 is a prime.

Together with 131646131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131646131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65823066 + 65823067.

It is an arithmetic number, because the mean of its divisors is an integer number (65823067).

Almost surely, 2^131646133 is an apocalyptic number.

It is an amenable number.

131646133 is a deficient number, since it is larger than the sum of its proper divisors (1).

131646133 is an equidigital number, since it uses as much as digits as its factorization.

131646133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 131646133 is about 11473.7148735708. The cubic root of 131646133 is about 508.7089387261.

The spelling of 131646133 in words is "one hundred thirty-one million, six hundred forty-six thousand, one hundred thirty-three".