115189740 has 72 divisors (see below), whose sum is σ = 361473840. Its totient is φ = 29656704.

The previous prime is 115189721. The next prime is 115189759. The reversal of 115189740 is 47981511.

115189740 is a `hidden beast` number, since 11 + 518 + 97 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (115189721) and next prime (115189759).

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

It is a junction number, because it is equal to n+sod(n) for n = 115189695 and 115189704.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5814 + ... + 16253.

It is an arithmetic number, because the mean of its divisors is an integer number (5020470).

Almost surely, 2^115189740 is an apocalyptic number.

115189740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115189740 is an abundant number, since it is smaller than the sum of its proper divisors (246284100).

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

115189740 is a wasteful number, since it uses less digits than its factorization.

115189740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22111 (or 22106 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 115189740 is about 10732.6483218263. The cubic root of 115189740 is about 486.5617139873.

The spelling of 115189740 in words is "one hundred fifteen million, one hundred eighty-nine thousand, seven hundred forty".