194289001 has 2 divisors, whose sum is σ = 194289002. Its totient is φ = 194289000.

The previous prime is 194288999. The next prime is 194289013. The reversal of 194289001 is 100982491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138039001 + 56250000 = 11749^2 + 7500^2 .

It is a cyclic number.

It is not a de Polignac number, because 194289001 - 2¹ = 194288999 is a prime.

Together with 194288999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (194289061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97144500 + 97144501.

It is an arithmetic number, because the mean of its divisors is an integer number (97144501).

Almost surely, 2^194289001 is an apocalyptic number.

It is an amenable number.

194289001 is a deficient number, since it is larger than the sum of its proper divisors (1).

194289001 is an equidigital number, since it uses as much as digits as its factorization.

194289001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 194289001 is about 13938.7589476251. The cubic root of 194289001 is about 579.1833542616.

The spelling of 194289001 in words is "one hundred ninety-four million, two hundred eighty-nine thousand, one".