131210133 has 4 divisors (see below), whose sum is σ = 174946848. Its totient is φ = 87473420.

The previous prime is 131210113. The next prime is 131210137. The reversal of 131210133 is 331012131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131210133 - 2¹² = 131206037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131210137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21868353 + ... + 21868358.

It is an arithmetic number, because the mean of its divisors is an integer number (43736712).

Almost surely, 2^131210133 is an apocalyptic number.

It is an amenable number.

131210133 is a deficient number, since it is larger than the sum of its proper divisors (43736715).

131210133 is an equidigital number, since it uses as much as digits as its factorization.

131210133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43736714.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 131210133 is about 11454.6991667176. The cubic root of 131210133 is about 508.1467183732.

Adding to 131210133 its reverse (331012131), we get a palindrome (462222264).

The spelling of 131210133 in words is "one hundred thirty-one million, two hundred ten thousand, one hundred thirty-three".