9198687225 has 192 divisors, whose sum is σ = 19486752768. Its totient is φ = 3725568000.

The previous prime is 9198687221. The next prime is 9198687263. The reversal of 9198687225 is 5227868919.

It is a happy number.

It is not a de Polignac number, because 9198687225 - 2² = 9198687221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9198687221) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 19867344 + ... + 19867806.

It is an arithmetic number, because the mean of its divisors is an integer number (101493504).

Almost surely, 2^9198687225 is an apocalyptic number.

It is an amenable number.

9198687225 is an abundant number, since it is smaller than the sum of its proper divisors (10288065543).

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

9198687225 is a wasteful number, since it uses less digits than its factorization.

9198687225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 603 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The square root of 9198687225 is about 95909.7869093660. The cubic root of 9198687225 is about 2095.2794363377.

The spelling of 9198687225 in words is "nine billion, one hundred ninety-eight million, six hundred eighty-seven thousand, two hundred twenty-five".