198068531 has 8 divisors (see below), whose sum is σ = 200691600. Its totient is φ = 195463008.

The previous prime is 198068447. The next prime is 198068537. The reversal of 198068531 is 135860891.

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

It is a cyclic number.

It is not a de Polignac number, because 198068531 - 2²⁶ = 130959667 is a prime.

It is a super-2 number, since 2×198068531² = 78462285944995922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198068537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19160 + ... + 27626.

It is an arithmetic number, because the mean of its divisors is an integer number (25086450).

Almost surely, 2^198068531 is an apocalyptic number.

198068531 is a deficient number, since it is larger than the sum of its proper divisors (2623069).

198068531 is a wasteful number, since it uses less digits than its factorization.

198068531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 198068531 is about 14073.6822118449. The cubic root of 198068531 is about 582.9149049011.

The spelling of 198068531 in words is "one hundred ninety-eight million, sixty-eight thousand, five hundred thirty-one".