189037193 has 4 divisors (see below), whose sum is σ = 189232848. Its totient is φ = 188841540.

The previous prime is 189037171. The next prime is 189037237. The reversal of 189037193 is 391730981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 189037193 - 2¹⁸ = 188775049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189037193.

It is not an unprimeable number, because it can be changed into a prime (189037993) 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 in 3 ways as a sum of consecutive naturals, for example, 96371 + ... + 98312.

It is an arithmetic number, because the mean of its divisors is an integer number (47308212).

Almost surely, 2^189037193 is an apocalyptic number.

It is an amenable number.

189037193 is a deficient number, since it is larger than the sum of its proper divisors (195655).

189037193 is an equidigital number, since it uses as much as digits as its factorization.

189037193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195654.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 189037193 is about 13749.0797146573. The cubic root of 189037193 is about 573.9169966217.

The spelling of 189037193 in words is "one hundred eighty-nine million, thirty-seven thousand, one hundred ninety-three".