189534001 has 2 divisors, whose sum is σ = 189534002. Its totient is φ = 189534000.

The previous prime is 189533977. The next prime is 189534013. The reversal of 189534001 is 100435981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145178401 + 44355600 = 12049^2 + 6660^2 .

It is a cyclic number.

It is not a de Polignac number, because 189534001 - 2⁹ = 189533489 is a prime.

It is not a weakly prime, because it can be changed into another prime (189532001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94767000 + 94767001.

It is an arithmetic number, because the mean of its divisors is an integer number (94767001).

Almost surely, 2^189534001 is an apocalyptic number.

It is an amenable number.

189534001 is a deficient number, since it is larger than the sum of its proper divisors (1).

189534001 is an equidigital number, since it uses as much as digits as its factorization.

189534001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 189534001 is about 13767.1348144776. The cubic root of 189534001 is about 574.4193265860.

Adding to 189534001 its reverse (100435981), we get a palindrome (289969982).

The spelling of 189534001 in words is "one hundred eighty-nine million, five hundred thirty-four thousand, one".