115021442 has 8 divisors (see below), whose sum is σ = 172623756. Its totient is φ = 57480192.

The previous prime is 115021427. The next prime is 115021447. The reversal of 115021442 is 244120511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90231001 + 24790441 = 9499^2 + 4979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (115021447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10223 + ... + 18290.

Almost surely, 2^115021442 is an apocalyptic number.

115021442 is a deficient number, since it is larger than the sum of its proper divisors (57602314).

115021442 is a wasteful number, since it uses less digits than its factorization.

115021442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30532.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 115021442 is about 10724.8049865720. The cubic root of 115021442 is about 486.3246347814.

Adding to 115021442 its reverse (244120511), we get a palindrome (359141953).

The spelling of 115021442 in words is "one hundred fifteen million, twenty-one thousand, four hundred forty-two".