131897133 has 16 divisors (see below), whose sum is σ = 202142400. Its totient is φ = 84898800.

The previous prime is 131897093. The next prime is 131897137. The reversal of 131897133 is 331798131.

It is not a de Polignac number, because 131897133 - 2⁹ = 131896621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131897137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83443 + ... + 85008.

It is an arithmetic number, because the mean of its divisors is an integer number (12633900).

Almost surely, 2^131897133 is an apocalyptic number.

It is an amenable number.

131897133 is a deficient number, since it is larger than the sum of its proper divisors (70245267).

131897133 is a wasteful number, since it uses less digits than its factorization.

131897133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168489 (or 168483 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 131897133 is about 11484.6477090070. The cubic root of 131897133 is about 509.0320394426.

The spelling of 131897133 in words is "one hundred thirty-one million, eight hundred ninety-seven thousand, one hundred thirty-three".