115325221 has 12 divisors (see below), whose sum is σ = 128198700. Its totient is φ = 103653440.

The previous prime is 115325219. The next prime is 115325261. The reversal of 115325221 is 122523511.

It can be written as a sum of positive squares in 2 ways, for example, as 72488196 + 42837025 = 8514^2 + 6545^2 .

It is not a de Polignac number, because 115325221 - 2¹ = 115325219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115325192 and 115325201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115325261) 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 11 ways as a sum of consecutive naturals, for example, 5415 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (10683225).

Almost surely, 2^115325221 is an apocalyptic number.

115325221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115325221 is a deficient number, since it is larger than the sum of its proper divisors (12873479).

115325221 is a wasteful number, since it uses less digits than its factorization.

115325221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10820 (or 10809 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 115325221 is about 10738.9580965753. The cubic root of 115325221 is about 486.7523965962.

Adding to 115325221 its reverse (122523511), we get a palindrome (237848732).

The spelling of 115325221 in words is "one hundred fifteen million, three hundred twenty-five thousand, two hundred twenty-one".