131335733 has 4 divisors (see below), whose sum is σ = 138248160. Its totient is φ = 124423308.

The previous prime is 131335703. The next prime is 131335777. The reversal of 131335733 is 337533131.

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 131335733 - 2²⁴ = 114558517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131335696 and 131335705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131335703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3456185 + ... + 3456222.

It is an arithmetic number, because the mean of its divisors is an integer number (34562040).

Almost surely, 2^131335733 is an apocalyptic number.

It is an amenable number.

131335733 is a deficient number, since it is larger than the sum of its proper divisors (6912427).

131335733 is an equidigital number, since it uses as much as digits as its factorization.

131335733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912426.

The product of its digits is 8505, while the sum is 29.

The square root of 131335733 is about 11460.1803214435. The cubic root of 131335733 is about 508.3088066520.

Adding to 131335733 its reverse (337533131), we get a palindrome (468868864).

The spelling of 131335733 in words is "one hundred thirty-one million, three hundred thirty-five thousand, seven hundred thirty-three".