198732015 has 32 divisors (see below), whose sum is σ = 354205440. Its totient is φ = 105719328.

The previous prime is 198731999. The next prime is 198732031. The reversal of 198732015 is 510237891.

It is an interprime number because it is at equal distance from previous prime (198731999) and next prime (198732031).

It is not a de Polignac number, because 198732015 - 2⁴ = 198731999 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58144 + ... + 61466.

It is an arithmetic number, because the mean of its divisors is an integer number (11068920).

Almost surely, 2^198732015 is an apocalyptic number.

198732015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198732015 is a deficient number, since it is larger than the sum of its proper divisors (155473425).

198732015 is a wasteful number, since it uses less digits than its factorization.

198732015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780 (or 3774 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 198732015 is about 14097.2343032242. The cubic root of 198732015 is about 583.5650564190.

The spelling of 198732015 in words is "one hundred ninety-eight million, seven hundred thirty-two thousand, fifteen".