115264021 has 2 divisors, whose sum is σ = 115264022. Its totient is φ = 115264020.

The previous prime is 115264003. The next prime is 115264043. The reversal of 115264021 is 120462511.

It is an a-pointer prime, because the next prime (115264043) can be obtained adding 115264021 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88078225 + 27185796 = 9385^2 + 5214^2 .

It is a cyclic number.

It is not a de Polignac number, because 115264021 - 2⁹ = 115263509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115263983 and 115264001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115264001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57632010 + 57632011.

It is an arithmetic number, because the mean of its divisors is an integer number (57632011).

Almost surely, 2^115264021 is an apocalyptic number.

It is an amenable number.

115264021 is a deficient number, since it is larger than the sum of its proper divisors (1).

115264021 is an equidigital number, since it uses as much as digits as its factorization.

115264021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 115264021 is about 10736.1082800054. The cubic root of 115264021 is about 486.6662792161. Note that the first 3 decimals are identical.

The spelling of 115264021 in words is "one hundred fifteen million, two hundred sixty-four thousand, twenty-one".