115663443 has 16 divisors (see below), whose sum is σ = 181013760. Its totient is φ = 64306656.

The previous prime is 115663441. The next prime is 115663447. The reversal of 115663443 is 344366511.

It is not a de Polignac number, because 115663443 - 2¹ = 115663441 is a prime.

It is a super-2 number, since 2×115663443² = 26756064093228498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115663441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73653 + ... + 75206.

It is an arithmetic number, because the mean of its divisors is an integer number (11313360).

Almost surely, 2^115663443 is an apocalyptic number.

115663443 is a deficient number, since it is larger than the sum of its proper divisors (65350317).

115663443 is a wasteful number, since it uses less digits than its factorization.

115663443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148906.

The product of its digits is 25920, while the sum is 33.

The square root of 115663443 is about 10754.6939984362. The cubic root of 115663443 is about 487.2277759583.

The spelling of 115663443 in words is "one hundred fifteen million, six hundred sixty-three thousand, four hundred forty-three".