189513533 has 4 divisors (see below), whose sum is σ = 206742048. Its totient is φ = 172285020.

The previous prime is 189513529. The next prime is 189513551. The reversal of 189513533 is 335315981.

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 189513533 - 2² = 189513529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189513503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8614241 + ... + 8614262.

It is an arithmetic number, because the mean of its divisors is an integer number (51685512).

Almost surely, 2^189513533 is an apocalyptic number.

It is an amenable number.

189513533 is a deficient number, since it is larger than the sum of its proper divisors (17228515).

189513533 is a wasteful number, since it uses less digits than its factorization.

189513533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17228514.

The product of its digits is 48600, while the sum is 38.

The square root of 189513533 is about 13766.3914298555. The cubic root of 189513533 is about 574.3986484351.

The spelling of 189513533 in words is "one hundred eighty-nine million, five hundred thirteen thousand, five hundred thirty-three".