115111442 has 8 divisors (see below), whose sum is σ = 175925196. Its totient is φ = 56469712.

The previous prime is 115111439. The next prime is 115111483. The reversal of 115111442 is 244111511.

It is a Cunningham number, because it is equal to 10729²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 115111441 + 1 = 10729^2 + 1^2 .

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

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, 542873 + ... + 543084.

Almost surely, 2^115111442 is an apocalyptic number.

115111442 is a deficient number, since it is larger than the sum of its proper divisors (60813754).

115111442 is a wasteful number, since it uses less digits than its factorization.

115111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086012.

The product of its digits is 160, while the sum is 20.

The square root of 115111442 is about 10729.0000466027. Note that the first 4 decimals coincide. The cubic root of 115111442 is about 486.4514453580.

Adding to 115111442 its reverse (244111511), we get a palindrome (359222953).

The spelling of 115111442 in words is "one hundred fifteen million, one hundred eleven thousand, four hundred forty-two".