198160431 has 8 divisors (see below), whose sum is σ = 301958784. Its totient is φ = 113234520.

The previous prime is 198160423. The next prime is 198160441. The reversal of 198160431 is 134061891.

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

It is not a de Polignac number, because 198160431 - 2³ = 198160423 is a prime.

It is a super-2 number, since 2×198160431² = 78535112828211522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198160392 and 198160401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198160441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4718085 + ... + 4718126.

It is an arithmetic number, because the mean of its divisors is an integer number (37744848).

Almost surely, 2^198160431 is an apocalyptic number.

198160431 is a deficient number, since it is larger than the sum of its proper divisors (103798353).

198160431 is an equidigital number, since it uses as much as digits as its factorization.

198160431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9436221.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 198160431 is about 14076.9467925399. The cubic root of 198160431 is about 583.0050447406.

The spelling of 198160431 in words is "one hundred ninety-eight million, one hundred sixty thousand, four hundred thirty-one".