130031533 has 4 divisors (see below), whose sum is σ = 130160160. Its totient is φ = 129902908.

The previous prime is 130031509. The next prime is 130031537. The reversal of 130031533 is 335130031.

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 130031533 - 2⁵ = 130031501 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 130031533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130031537) 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, 62785 + ... + 64822.

It is an arithmetic number, because the mean of its divisors is an integer number (32540040).

Almost surely, 2^130031533 is an apocalyptic number.

It is an amenable number.

130031533 is a deficient number, since it is larger than the sum of its proper divisors (128627).

130031533 is a wasteful number, since it uses less digits than its factorization.

130031533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128626.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 130031533 is about 11403.1369806733. The cubic root of 130031533 is about 506.6206575161.

Adding to 130031533 its reverse (335130031), we get a palindrome (465161564).

The spelling of 130031533 in words is "one hundred thirty million, thirty-one thousand, five hundred thirty-three".