189534013 has 2 divisors, whose sum is σ = 189534014. Its totient is φ = 189534012.

The previous prime is 189534001. The next prime is 189534029. The reversal of 189534013 is 310435981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183954969 + 5579044 = 13563^2 + 2362^2 .

It is a cyclic number.

It is not a de Polignac number, because 189534013 - 2²¹ = 187436861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189534013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189534043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94767006 + 94767007.

It is an arithmetic number, because the mean of its divisors is an integer number (94767007).

Almost surely, 2^189534013 is an apocalyptic number.

It is an amenable number.

189534013 is a deficient number, since it is larger than the sum of its proper divisors (1).

189534013 is an equidigital number, since it uses as much as digits as its factorization.

189534013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 189534013 is about 13767.1352502981. The cubic root of 189534013 is about 574.4193387088.

Adding to 189534013 its reverse (310435981), we get a palindrome (499969994).

The spelling of 189534013 in words is "one hundred eighty-nine million, five hundred thirty-four thousand, thirteen".