115100521 has 2 divisors, whose sum is σ = 115100522. Its totient is φ = 115100520.

The previous prime is 115100519. The next prime is 115100567. The reversal of 115100521 is 125001511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70744921 + 44355600 = 8411^2 + 6660^2 .

It is an emirp because it is prime and its reverse (125001511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115100521 - 2¹ = 115100519 is a prime.

Together with 115100519, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 115100495 and 115100504.

It is not a weakly prime, because it can be changed into another prime (115100501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57550260 + 57550261.

It is an arithmetic number, because the mean of its divisors is an integer number (57550261).

Almost surely, 2^115100521 is an apocalyptic number.

It is an amenable number.

115100521 is a deficient number, since it is larger than the sum of its proper divisors (1).

115100521 is an equidigital number, since it uses as much as digits as its factorization.

115100521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 115100521 is about 10728.4910868211. The cubic root of 115100521 is about 486.4360611235.

The spelling of 115100521 in words is "one hundred fifteen million, one hundred thousand, five hundred twenty-one".