215062993 has 2 divisors, whose sum is σ = 215062994. Its totient is φ = 215062992.

The previous prime is 215062987. The next prime is 215063021. The reversal of 215062993 is 399260512.

215062993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111999889 + 103063104 = 10583^2 + 10152^2 .

It is a cyclic number.

It is not a de Polignac number, because 215062993 - 2⁹ = 215062481 is a prime.

It is not a weakly prime, because it can be changed into another prime (215062973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107531496 + 107531497.

It is an arithmetic number, because the mean of its divisors is an integer number (107531497).

Almost surely, 2^215062993 is an apocalyptic number.

It is an amenable number.

215062993 is a deficient number, since it is larger than the sum of its proper divisors (1).

215062993 is an equidigital number, since it uses as much as digits as its factorization.

215062993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 215062993 is about 14665.0261847703. The cubic root of 215062993 is about 599.1311433468.

The spelling of 215062993 in words is "two hundred fifteen million, sixty-two thousand, nine hundred ninety-three".