197122028 has 12 divisors (see below), whose sum is σ = 345076032. Its totient is φ = 98528880.

The previous prime is 197122027. The next prime is 197122061. The reversal of 197122028 is 820221791.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 197121985 and 197122003.

It is not an unprimeable number, because it can be changed into a prime (197122027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10538 + ... + 22478.

It is an arithmetic number, because the mean of its divisors is an integer number (28756336).

Almost surely, 2^197122028 is an apocalyptic number.

It is an amenable number.

197122028 is a deficient number, since it is larger than the sum of its proper divisors (147954004).

197122028 is a wasteful number, since it uses less digits than its factorization.

197122028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16072 (or 16070 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 197122028 is about 14040.0152421570. The cubic root of 197122028 is about 581.9849037388.

The spelling of 197122028 in words is "one hundred ninety-seven million, one hundred twenty-two thousand, twenty-eight".