115221030 has 32 divisors (see below), whose sum is σ = 288555264. Its totient is φ = 29389536.

The previous prime is 115221023. The next prime is 115221049. The reversal of 115221030 is 30122511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82804 + ... + 84183.

It is an arithmetic number, because the mean of its divisors is an integer number (9017352).

Almost surely, 2^115221030 is an apocalyptic number.

115221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115221030 is an abundant number, since it is smaller than the sum of its proper divisors (173334234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115221030 is a wasteful number, since it uses less digits than its factorization.

115221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167020.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 115221030 is about 10734.1059245752. The cubic root of 115221030 is about 486.6057663416.

Adding to 115221030 its reverse (30122511), we get a palindrome (145343541).

The spelling of 115221030 in words is "one hundred fifteen million, two hundred twenty-one thousand, thirty".