115540426 has 4 divisors (see below), whose sum is σ = 173310642. Its totient is φ = 57770212.

The previous prime is 115540393. The next prime is 115540427. The reversal of 115540426 is 624045511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65626201 + 49914225 = 8101^2 + 7065^2 .

It is a super-2 number, since 2×115540426² = 26699180080522952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115540394 and 115540403.

It is not an unprimeable number, because it can be changed into a prime (115540427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28885105 + ... + 28885108.

Almost surely, 2^115540426 is an apocalyptic number.

115540426 is a deficient number, since it is larger than the sum of its proper divisors (57770216).

115540426 is an equidigital number, since it uses as much as digits as its factorization.

115540426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57770215.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 115540426 is about 10748.9732532926. The cubic root of 115540426 is about 487.0549798998.

Adding to 115540426 its reverse (624045511), we get a palindrome (739585937).

The spelling of 115540426 in words is "one hundred fifteen million, five hundred forty thousand, four hundred twenty-six".