9015897100 has 216 divisors, whose sum is σ = 24196732560. Its totient is φ = 2899169280.

The previous prime is 9015897097. The next prime is 9015897131. The reversal of 9015897100 is 17985109.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10519872 + ... + 10520728.

It is an arithmetic number, because the mean of its divisors is an integer number (112021910).

Almost surely, 2^9015897100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9015897100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12098366280).

9015897100 is an abundant number, since it is smaller than the sum of its proper divisors (15180835460).

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

9015897100 is a wasteful number, since it uses less digits than its factorization.

9015897100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 9015897100 is about 94952.0779130188. The cubic root of 9015897100 is about 2081.3078175042.

The spelling of 9015897100 in words is "nine billion, fifteen million, eight hundred ninety-seven thousand, one hundred".