115505147 has 4 divisors (see below), whose sum is σ = 117398736. Its totient is φ = 113611560.

The previous prime is 115505141. The next prime is 115505153. The reversal of 115505147 is 741505511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741505511 = 47 ⋅15776713.

It is an interprime number because it is at equal distance from previous prime (115505141) and next prime (115505153).

It is a cyclic number.

It is not a de Polignac number, because 115505147 - 2⁸ = 115504891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115505141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946703 + ... + 946824.

It is an arithmetic number, because the mean of its divisors is an integer number (29349684).

Almost surely, 2^115505147 is an apocalyptic number.

115505147 is a deficient number, since it is larger than the sum of its proper divisors (1893589).

115505147 is an equidigital number, since it uses as much as digits as its factorization.

115505147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893588.

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 115505147 is about 10747.3320875462. The cubic root of 115505147 is about 487.0054025573.

The spelling of 115505147 in words is "one hundred fifteen million, five hundred five thousand, one hundred forty-seven".