197228115 has 80 divisors (see below), whose sum is σ = 410021568. Its totient is φ = 88833024.

The previous prime is 197228111. The next prime is 197228117. The reversal of 197228115 is 511822791.

It is a happy number.

It is not a de Polignac number, because 197228115 - 2² = 197228111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197228115.

It is not an unprimeable number, because it can be changed into a prime (197228111) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 206479 + ... + 207431.

Almost surely, 2^197228115 is an apocalyptic number.

197228115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

197228115 is an abundant number, since it is smaller than the sum of its proper divisors (212793453).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197228115 is an equidigital number, since it uses as much as digits as its factorization.

197228115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1041 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 197228115 is about 14043.7927569443. The cubic root of 197228115 is about 582.0892890960.

The spelling of 197228115 in words is "one hundred ninety-seven million, two hundred twenty-eight thousand, one hundred fifteen".