189730102 has 4 divisors (see below), whose sum is σ = 284595156. Its totient is φ = 94865050.

The previous prime is 189730063. The next prime is 189730129. The reversal of 189730102 is 201037981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201037981 = 3853 ⋅52177.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47432524 + ... + 47432527.

It is an arithmetic number, because the mean of its divisors is an integer number (71148789).

Almost surely, 2^189730102 is an apocalyptic number.

189730102 is a deficient number, since it is larger than the sum of its proper divisors (94865054).

189730102 is an equidigital number, since it uses as much as digits as its factorization.

189730102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94865053.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 189730102 is about 13774.2550433771. The cubic root of 189730102 is about 574.6173655958.

The spelling of 189730102 in words is "one hundred eighty-nine million, seven hundred thirty thousand, one hundred two".