115741221 has 16 divisors (see below), whose sum is σ = 161948160. Its totient is φ = 73385840.

The previous prime is 115741211. The next prime is 115741231. The reversal of 115741221 is 122147511.

It is an interprime number because it is at equal distance from previous prime (115741211) and next prime (115741231).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115741221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 115741191 and 115741200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115741201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7666 + ... + 17036.

It is an arithmetic number, because the mean of its divisors is an integer number (10121760).

Almost surely, 2^115741221 is an apocalyptic number.

It is an amenable number.

115741221 is a deficient number, since it is larger than the sum of its proper divisors (46206939).

115741221 is a wasteful number, since it uses less digits than its factorization.

115741221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576.

The product of its digits is 560, while the sum is 24.

The square root of 115741221 is about 10758.3093932086. The cubic root of 115741221 is about 487.3369637588.

Adding to 115741221 its reverse (122147511), we get a palindrome (237888732).

The spelling of 115741221 in words is "one hundred fifteen million, seven hundred forty-one thousand, two hundred twenty-one".