131333133 has 12 divisors (see below), whose sum is σ = 176526944. Its totient is φ = 86853000.

The previous prime is 131333131. The next prime is 131333201. The reversal of 131333133 is 331333131.

It is not a de Polignac number, because 131333133 - 2¹ = 131333131 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131333131) 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 11 ways as a sum of consecutive naturals, for example, 50208 + ... + 52758.

Almost surely, 2^131333133 is an apocalyptic number.

It is an amenable number.

131333133 is a deficient number, since it is larger than the sum of its proper divisors (45193811).

131333133 is an equidigital number, since it uses as much as digits as its factorization.

131333133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816 (or 2685 counting only the distinct ones).

The product of its digits is 729, while the sum is 21.

The square root of 131333133 is about 11460.0668846216. The cubic root of 131333133 is about 508.3054523691.

Adding to 131333133 its reverse (331333131), we get a palindrome (462666264).

The spelling of 131333133 in words is "one hundred thirty-one million, three hundred thirty-three thousand, one hundred thirty-three".