115147 has 4 divisors (see below), whose sum is σ = 116280. Its totient is φ = 114016.

The previous prime is 115133. The next prime is 115151. The reversal of 115147 is 741511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741511 = 157 ⋅4723.

It is a cyclic number.

It is not a de Polignac number, because 115147 - 2⁷ = 115019 is a prime.

It is a Duffinian number.

115147 is a lucky number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (115117) 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, 397 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (29070).

2¹¹⁵¹⁴⁷ is an apocalyptic number.

115147 is a deficient number, since it is larger than the sum of its proper divisors (1133).

115147 is a wasteful number, since it uses less digits than its factorization.

115147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 140, while the sum is 19.

The square root of 115147 is about 339.3331696136. Note that the first 3 decimals coincide. The cubic root of 115147 is about 48.6501528592.

Adding to 115147 its reverse (741511), we get a palindrome (856658).

It can be divided in two parts, 115 and 147, that added together give a palindrome (262).

The spelling of 115147 in words is "one hundred fifteen thousand, one hundred forty-seven".