189803315 has 8 divisors (see below), whose sum is σ = 245284368. Its totient is φ = 140162400.

The previous prime is 189803311. The next prime is 189803329. The reversal of 189803315 is 513308981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189803315 - 2² = 189803311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189803311) 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 7 ways as a sum of consecutive naturals, for example, 1459961 + ... + 1460090.

It is an arithmetic number, because the mean of its divisors is an integer number (30660546).

Almost surely, 2^189803315 is an apocalyptic number.

189803315 is a deficient number, since it is larger than the sum of its proper divisors (55481053).

189803315 is a wasteful number, since it uses less digits than its factorization.

189803315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920069.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 189803315 is about 13776.9123899370. The cubic root of 189803315 is about 574.6912671550.

The spelling of 189803315 in words is "one hundred eighty-nine million, eight hundred three thousand, three hundred fifteen".