1115141688 has 64 divisors (see below), whose sum is σ = 3106144800. Its totient is φ = 370690560.

The previous prime is 1115141681. The next prime is 1115141701. The reversal of 1115141688 is 8861415111.

1115141688 is a `hidden beast` number, since 11 + 151 + 416 + 88 = 666.

1115141688 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115141681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73648 + ... + 87488.

Almost surely, 2^1115141688 is an apocalyptic number.

1115141688 is a gapful number since it is divisible by the number (18) 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 1115141688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553072400).

1115141688 is an abundant number, since it is smaller than the sum of its proper divisors (1991003112).

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

1115141688 is a wasteful number, since it uses less digits than its factorization.

1115141688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14229 (or 14219 counting only the distinct ones).

The product of its digits is 7680, while the sum is 36.

The square root of 1115141688 is about 33393.7372571565. The cubic root of 1115141688 is about 1036.9950512875.

Adding to 1115141688 its reverse (8861415111), we get a palindrome (9976556799).

The spelling of 1115141688 in words is "one billion, one hundred fifteen million, one hundred forty-one thousand, six hundred eighty-eight".