115542436 has 12 divisors (see below), whose sum is σ = 203317660. Its totient is φ = 57451680.

The previous prime is 115542433. The next prime is 115542437. The reversal of 115542436 is 634245511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2119936 + 113422500 = 1456^2 + 10650^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115542398 and 115542407.

It is not an unprimeable number, because it can be changed into a prime (115542431) 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, 79071 + ... + 80518.

Almost surely, 2^115542436 is an apocalyptic number.

It is an amenable number.

115542436 is a deficient number, since it is larger than the sum of its proper divisors (87775224).

115542436 is a wasteful number, since it uses less digits than its factorization.

115542436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159774 (or 159772 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 115542436 is about 10749.0667501881. The cubic root of 115542436 is about 487.0578042354.

Adding to 115542436 its reverse (634245511), we get a palindrome (749787947).

The spelling of 115542436 in words is "one hundred fifteen million, five hundred forty-two thousand, four hundred thirty-six".