131120533 has 4 divisors (see below), whose sum is σ = 131800108. Its totient is φ = 130440960.

The previous prime is 131120519. The next prime is 131120557. The reversal of 131120533 is 335021131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38229489 + 92891044 = 6183^2 + 9638^2 .

It is a cyclic number.

It is not a de Polignac number, because 131120533 - 2⁹ = 131120021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131120533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131120573) 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, 339498 + ... + 339883.

It is an arithmetic number, because the mean of its divisors is an integer number (32950027).

Almost surely, 2^131120533 is an apocalyptic number.

It is an amenable number.

131120533 is a deficient number, since it is larger than the sum of its proper divisors (679575).

131120533 is an equidigital number, since it uses as much as digits as its factorization.

131120533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679574.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 131120533 is about 11450.7874401720. The cubic root of 131120533 is about 508.0310252922.

Adding to 131120533 its reverse (335021131), we get a palindrome (466141664).

The spelling of 131120533 in words is "one hundred thirty-one million, one hundred twenty thousand, five hundred thirty-three".