115825321 has 6 divisors (see below), whose sum is σ = 116282922. Its totient is φ = 115369200.

The previous prime is 115825291. The next prime is 115825327. The reversal of 115825321 is 123528511.

It can be written as a sum of positive squares in only one way, i.e., 111007296 + 4818025 = 10536^2 + 2195^2 .

It is not a de Polignac number, because 115825321 - 2⁹ = 115824809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115825321.

It is not an unprimeable number, because it can be changed into a prime (115825327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192421 + ... + 193021.

It is an arithmetic number, because the mean of its divisors is an integer number (19380487).

Almost surely, 2^115825321 is an apocalyptic number.

It is an amenable number.

115825321 is a deficient number, since it is larger than the sum of its proper divisors (457601).

115825321 is an frugal number, since it uses more digits than its factorization.

115825321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1040 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 115825321 is about 10762.2172901312. The cubic root of 115825321 is about 487.4549716026.

The spelling of 115825321 in words is "one hundred fifteen million, eight hundred twenty-five thousand, three hundred twenty-one".