215040283 has 2 divisors, whose sum is σ = 215040284. Its totient is φ = 215040282.

The previous prime is 215040253. The next prime is 215040289. The reversal of 215040283 is 382040512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215040283 - 2⁹ = 215039771 is a prime.

It is not a weakly prime, because it can be changed into another prime (215040289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107520141 + 107520142.

It is an arithmetic number, because the mean of its divisors is an integer number (107520142).

Almost surely, 2^215040283 is an apocalyptic number.

215040283 is a deficient number, since it is larger than the sum of its proper divisors (1).

215040283 is an equidigital number, since it uses as much as digits as its factorization.

215040283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 215040283 is about 14664.2518731778. The cubic root of 215040283 is about 599.1100537937.

Adding to 215040283 its reverse (382040512), we get a palindrome (597080795).

The spelling of 215040283 in words is "two hundred fifteen million, forty thousand, two hundred eighty-three".