189317115 has 32 divisors (see below), whose sum is σ = 362456640. Its totient is φ = 93201408.

The previous prime is 189317087. The next prime is 189317119. The reversal of 189317115 is 511713981.

It is not a de Polignac number, because 189317115 - 2¹¹ = 189315067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189317115.

It is not an unprimeable number, because it can be changed into a prime (189317119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52182 + ... + 55691.

It is an arithmetic number, because the mean of its divisors is an integer number (11326770).

Almost surely, 2^189317115 is an apocalyptic number.

189317115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189317115 is a deficient number, since it is larger than the sum of its proper divisors (173139525).

189317115 is a wasteful number, since it uses less digits than its factorization.

189317115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107900 (or 107894 counting only the distinct ones).

The product of its digits is 7560, while the sum is 36.

The square root of 189317115 is about 13759.2556121325. The cubic root of 189317115 is about 574.2001380140.

The spelling of 189317115 in words is "one hundred eighty-nine million, three hundred seventeen thousand, one hundred fifteen".