215261083 has 2 divisors, whose sum is σ = 215261084. Its totient is φ = 215261082.

The previous prime is 215261077. The next prime is 215261107. The reversal of 215261083 is 380162512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215261083 - 2¹⁷ = 215130011 is a prime.

It is not a weakly prime, because it can be changed into another prime (215261003) 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, 107630541 + 107630542.

It is an arithmetic number, because the mean of its divisors is an integer number (107630542).

Almost surely, 2^215261083 is an apocalyptic number.

215261083 is a deficient number, since it is larger than the sum of its proper divisors (1).

215261083 is an equidigital number, since it uses as much as digits as its factorization.

215261083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 215261083 is about 14671.7784538889. The cubic root of 215261083 is about 599.3150359305.

The spelling of 215261083 in words is "two hundred fifteen million, two hundred sixty-one thousand, eighty-three".