115511271 has 8 divisors (see below), whose sum is σ = 154228080. Its totient is φ = 76900992.

The previous prime is 115511269. The next prime is 115511293. The reversal of 115511271 is 172115511.

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

It is not a de Polignac number, because 115511271 - 2¹ = 115511269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115511251) 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 7 ways as a sum of consecutive naturals, for example, 24066 + ... + 28463.

It is an arithmetic number, because the mean of its divisors is an integer number (19278510).

Almost surely, 2^115511271 is an apocalyptic number.

115511271 is a deficient number, since it is larger than the sum of its proper divisors (38716809).

115511271 is an equidigital number, since it uses as much as digits as its factorization.

115511271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53265.

The product of its digits is 350, while the sum is 24.

The square root of 115511271 is about 10747.6169916870. The cubic root of 115511271 is about 487.0140092975.

Adding to 115511271 its reverse (172115511), we get a palindrome (287626782).

The spelling of 115511271 in words is "one hundred fifteen million, five hundred eleven thousand, two hundred seventy-one".