162198231 has 64 divisors (see below), whose sum is σ = 264929280. Its totient is φ = 87246720.

The previous prime is 162198227. The next prime is 162198233. The reversal of 162198231 is 132891261.

It is not a de Polignac number, because 162198231 - 2² = 162198227 is a prime.

It is a super-2 number, since 2×162198231² = 52616532279058722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 162198192 and 162198201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162198233) 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 63 ways as a sum of consecutive naturals, for example, 528180 + ... + 528486.

It is an arithmetic number, because the mean of its divisors is an integer number (4139520).

Almost surely, 2^162198231 is an apocalyptic number.

162198231 is a deficient number, since it is larger than the sum of its proper divisors (102731049).

162198231 is a wasteful number, since it uses less digits than its factorization.

162198231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

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

The square root of 162198231 is about 12735.7069297311. The cubic root of 162198231 is about 545.3584388427.

The spelling of 162198231 in words is "one hundred sixty-two million, one hundred ninety-eight thousand, two hundred thirty-one".