115543012 has 12 divisors (see below), whose sum is σ = 217754236. Its totient is φ = 53327520.

The previous prime is 115542997. The next prime is 115543049. The reversal of 115543012 is 210345511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51926436 + 63616576 = 7206^2 + 7976^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110939 + ... + 1111042.

Almost surely, 2^115543012 is an apocalyptic number.

It is an amenable number.

115543012 is a deficient number, since it is larger than the sum of its proper divisors (102211224).

115543012 is a wasteful number, since it uses less digits than its factorization.

115543012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221998 (or 2221996 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 115543012 is about 10749.0935431784. The cubic root of 115543012 is about 487.0586135912.

Adding to 115543012 its reverse (210345511), we get a palindrome (325888523).

The spelling of 115543012 in words is "one hundred fifteen million, five hundred forty-three thousand, twelve".