115523530 has 16 divisors (see below), whose sum is σ = 215113320. Its totient is φ = 44615872.

The previous prime is 115523519. The next prime is 115523531. The reversal of 115523530 is 35325511.

It can be written as a sum of positive squares in 4 ways, for example, as 114768369 + 755161 = 10713^2 + 869^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115523495 and 115523504.

It is not an unprimeable number, because it can be changed into a prime (115523531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198889 + ... + 199468.

Almost surely, 2^115523530 is an apocalyptic number.

115523530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115523530 is a deficient number, since it is larger than the sum of its proper divisors (99589790).

115523530 is a wasteful number, since it uses less digits than its factorization.

115523530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398393.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 115523530 is about 10748.1872890269. The cubic root of 115523530 is about 487.0312373236.

The spelling of 115523530 in words is "one hundred fifteen million, five hundred twenty-three thousand, five hundred thirty".