131798133 has 6 divisors (see below), whose sum is σ = 190375094. Its totient is φ = 87865416.

The previous prime is 131798131. The next prime is 131798167. The reversal of 131798133 is 331897131.

It can be written as a sum of positive squares in only one way, i.e., 100460529 + 31337604 = 10023^2 + 5598^2 .

It is not a de Polignac number, because 131798133 - 2¹ = 131798131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131798131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7322110 + ... + 7322127.

Almost surely, 2^131798133 is an apocalyptic number.

It is an amenable number.

131798133 is a deficient number, since it is larger than the sum of its proper divisors (58576961).

131798133 is a wasteful number, since it uses less digits than its factorization.

131798133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14644243 (or 14644240 counting only the distinct ones).

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

The square root of 131798133 is about 11480.3367981954. The cubic root of 131798133 is about 508.9046503063.

It can be divided in two parts, 13179 and 8133, that added together give a palindrome (21312).

The spelling of 131798133 in words is "one hundred thirty-one million, seven hundred ninety-eight thousand, one hundred thirty-three".