115001217 has 24 divisors (see below), whose sum is σ = 171348840. Its totient is φ = 74269440.

The previous prime is 115001191. The next prime is 115001267. The reversal of 115001217 is 712100511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 86099841 + 28901376 = 9279^2 + 5376^2 .

It is not a de Polignac number, because 115001217 - 2⁸ = 115000961 is a prime.

It is a super-2 number, since 2×115001217² = 26450559822962178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115001217.

It is not an unprimeable number, because it can be changed into a prime (115001267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92959 + ... + 94187.

It is an arithmetic number, because the mean of its divisors is an integer number (7139535).

Almost surely, 2^115001217 is an apocalyptic number.

It is an amenable number.

115001217 is a deficient number, since it is larger than the sum of its proper divisors (56347623).

115001217 is a wasteful number, since it uses less digits than its factorization.

115001217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 115001217 is about 10723.8620375311. The cubic root of 115001217 is about 486.2961285245.

Adding to 115001217 its reverse (712100511), we get a palindrome (827101728).

The spelling of 115001217 in words is "one hundred fifteen million, one thousand, two hundred seventeen".