115144235 has 4 divisors (see below), whose sum is σ = 138173088. Its totient is φ = 92115384.

The previous prime is 115144231. The next prime is 115144241. The reversal of 115144235 is 532441511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532441511 = 7 ⋅76063073.

It is a cyclic number.

It is not a de Polignac number, because 115144235 - 2² = 115144231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115144231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11514419 + ... + 11514428.

It is an arithmetic number, because the mean of its divisors is an integer number (34543272).

Almost surely, 2^115144235 is an apocalyptic number.

115144235 is a deficient number, since it is larger than the sum of its proper divisors (23028853).

115144235 is an equidigital number, since it uses as much as digits as its factorization.

115144235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23028852.

The product of its digits is 2400, while the sum is 26.

The square root of 115144235 is about 10730.5281789854. The cubic root of 115144235 is about 486.4976344752.

Adding to 115144235 its reverse (532441511), we get a palindrome (647585746).

The spelling of 115144235 in words is "one hundred fifteen million, one hundred forty-four thousand, two hundred thirty-five".