115304621 has 2 divisors, whose sum is σ = 115304622. Its totient is φ = 115304620.

The previous prime is 115304611. The next prime is 115304647. The reversal of 115304621 is 126403511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105781225 + 9523396 = 10285^2 + 3086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115304621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115304611) 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 as a sum of consecutive naturals, namely, 57652310 + 57652311.

It is an arithmetic number, because the mean of its divisors is an integer number (57652311).

Almost surely, 2^115304621 is an apocalyptic number.

It is an amenable number.

115304621 is a deficient number, since it is larger than the sum of its proper divisors (1).

115304621 is an equidigital number, since it uses as much as digits as its factorization.

115304621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 115304621 is about 10737.9989290370. The cubic root of 115304621 is about 486.7234127759.

Adding to 115304621 its sum of digits (23), we get a square (115304644 = 10738²).

The spelling of 115304621 in words is "one hundred fifteen million, three hundred four thousand, six hundred twenty-one".