115655100 has 144 divisors (see below), whose sum is σ = 369726336. Its totient is φ = 27680000.

The previous prime is 115655093. The next prime is 115655101. The reversal of 115655100 is 1556511.

It is a super-2 number, since 2×115655100² = 26752204312020000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115655101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 333127 + ... + 333473.

It is an arithmetic number, because the mean of its divisors is an integer number (2567544).

Almost surely, 2^115655100 is an apocalyptic number.

115655100 is a gapful number since it is divisible by the number (10) 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 115655100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184863168).

115655100 is an abundant number, since it is smaller than the sum of its proper divisors (254071236).

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

115655100 is a wasteful number, since it uses less digits than its factorization.

115655100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 115655100 is about 10754.3061142967. The cubic root of 115655100 is about 487.2160608218.

The spelling of 115655100 in words is "one hundred fifteen million, six hundred fifty-five thousand, one hundred".