189382903 has 2 divisors, whose sum is σ = 189382904. Its totient is φ = 189382902.

The previous prime is 189382891. The next prime is 189382981. The reversal of 189382903 is 309283981.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (309283981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189382903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189382903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189382603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94691451 + 94691452.

It is an arithmetic number, because the mean of its divisors is an integer number (94691452).

Almost surely, 2^189382903 is an apocalyptic number.

189382903 is a deficient number, since it is larger than the sum of its proper divisors (1).

189382903 is an equidigital number, since it uses as much as digits as its factorization.

189382903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 189382903 is about 13761.6460861337. The cubic root of 189382903 is about 574.2666421330.

The spelling of 189382903 in words is "one hundred eighty-nine million, three hundred eighty-two thousand, nine hundred three".