215273063 has 2 divisors, whose sum is σ = 215273064. Its totient is φ = 215273062.

The previous prime is 215273041. The next prime is 215273089. The reversal of 215273063 is 360372512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215273063 - 2⁸ = 215272807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215273563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107636531 + 107636532.

It is an arithmetic number, because the mean of its divisors is an integer number (107636532).

Almost surely, 2^215273063 is an apocalyptic number.

215273063 is a deficient number, since it is larger than the sum of its proper divisors (1).

215273063 is an equidigital number, since it uses as much as digits as its factorization.

215273063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 215273063 is about 14672.1867150060. The cubic root of 215273063 is about 599.3261536871.

The spelling of 215273063 in words is "two hundred fifteen million, two hundred seventy-three thousand, sixty-three".