115640830 has 8 divisors (see below), whose sum is σ = 208153512. Its totient is φ = 46256328.

The previous prime is 115640827. The next prime is 115640831. The reversal of 115640830 is 38046511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115640831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5782032 + ... + 5782051.

It is an arithmetic number, because the mean of its divisors is an integer number (26019189).

Almost surely, 2^115640830 is an apocalyptic number.

115640830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115640830 is a deficient number, since it is larger than the sum of its proper divisors (92512682).

115640830 is a wasteful number, since it uses less digits than its factorization.

115640830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11564090.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 115640830 is about 10753.6426386597. The cubic root of 115640830 is about 487.1960217598.

The spelling of 115640830 in words is "one hundred fifteen million, six hundred forty thousand, eight hundred thirty".