189012533 has 2 divisors, whose sum is σ = 189012534. Its totient is φ = 189012532.

The previous prime is 189012529. The next prime is 189012541. The reversal of 189012533 is 335210981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147306769 + 41705764 = 12137^2 + 6458^2 .

It is a cyclic number.

It is not a de Polignac number, because 189012533 - 2² = 189012529 is a prime.

It is a super-3 number, since 3×189012533³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189012533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189012833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94506266 + 94506267.

It is an arithmetic number, because the mean of its divisors is an integer number (94506267).

Almost surely, 2^189012533 is an apocalyptic number.

It is an amenable number.

189012533 is a deficient number, since it is larger than the sum of its proper divisors (1).

189012533 is an equidigital number, since it uses as much as digits as its factorization.

189012533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 189012533 is about 13748.1828981142. The cubic root of 189012533 is about 573.8920396130.

The spelling of 189012533 in words is "one hundred eighty-nine million, twelve thousand, five hundred thirty-three".