115397616 has 80 divisors (see below), whose sum is σ = 307980288. Its totient is φ = 37209600.

The previous prime is 115397603. The next prime is 115397663. The reversal of 115397616 is 616793511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375735 + ... + 376041.

Almost surely, 2^115397616 is an apocalyptic number.

115397616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115397616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153990144).

115397616 is an abundant number, since it is smaller than the sum of its proper divisors (192582672).

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

115397616 is a wasteful number, since it uses less digits than its factorization.

115397616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 544 counting only the distinct ones).

The product of its digits is 34020, while the sum is 39.

The square root of 115397616 is about 10742.3282392599. The cubic root of 115397616 is about 486.8542276569.

The spelling of 115397616 in words is "one hundred fifteen million, three hundred ninety-seven thousand, six hundred sixteen".