112571521 has 2 divisors, whose sum is σ = 112571522. Its totient is φ = 112571520.

The previous prime is 112571497. The next prime is 112571567. The reversal of 112571521 is 125175211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95257600 + 17313921 = 9760^2 + 4161^2 .

It is a cyclic number.

It is not a de Polignac number, because 112571521 - 2¹¹ = 112569473 is a prime.

It is not a weakly prime, because it can be changed into another prime (112571581) by changing a digit.

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 as a sum of consecutive naturals, namely, 56285760 + 56285761.

It is an arithmetic number, because the mean of its divisors is an integer number (56285761).

Almost surely, 2^112571521 is an apocalyptic number.

It is an amenable number.

112571521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112571521 is an equidigital number, since it uses as much as digits as its factorization.

112571521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 700, while the sum is 25.

The square root of 112571521 is about 10609.9727143853. The cubic root of 112571521 is about 482.8469710261.

The spelling of 112571521 in words is "one hundred twelve million, five hundred seventy-one thousand, five hundred twenty-one".