115140305 has 8 divisors (see below), whose sum is σ = 157906752. Its totient is φ = 78953328.

The previous prime is 115140299. The next prime is 115140307. The reversal of 115140305 is 503041511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115140305 - 2⁸ = 115140049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115140307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1644827 + ... + 1644896.

It is an arithmetic number, because the mean of its divisors is an integer number (19738344).

Almost surely, 2^115140305 is an apocalyptic number.

It is an amenable number.

115140305 is a deficient number, since it is larger than the sum of its proper divisors (42766447).

115140305 is an equidigital number, since it uses as much as digits as its factorization.

115140305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289735.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115140305 is about 10730.3450550297. The cubic root of 115140305 is about 486.4920995116.

Adding to 115140305 its reverse (503041511), we get a palindrome (618181816).

The spelling of 115140305 in words is "one hundred fifteen million, one hundred forty thousand, three hundred five".