115640010 has 24 divisors (see below), whose sum is σ = 300664260. Its totient is φ = 30837312.

The previous prime is 115640009. The next prime is 115640033. The reversal of 115640010 is 10046511.

Added to its reverse (10046511) it gives a square (125686521 = 11211²).

115640010 is a `hidden beast` number, since 1 + 15 + 640 + 0 + 10 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 93257649 + 22382361 = 9657^2 + 4731^2 .

It is a super-2 number, since 2×115640010² = 26745223825600200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642355 + ... + 642534.

Almost surely, 2^115640010 is an apocalyptic number.

115640010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115640010 is an abundant number, since it is smaller than the sum of its proper divisors (185024250).

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

115640010 is a wasteful number, since it uses less digits than its factorization.

115640010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284902 (or 1284899 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 115640010 is about 10753.6045119764. The cubic root of 115640010 is about 487.1948702009.

Adding to 115640010 its reverse (10046511), we get a palindrome (125686521).

The spelling of 115640010 in words is "one hundred fifteen million, six hundred forty thousand, ten".