215103063 has 32 divisors (see below), whose sum is σ = 342351360. Its totient is φ = 117532800.

The previous prime is 215103059. The next prime is 215103073. The reversal of 215103063 is 360301512.

It is not a de Polignac number, because 215103063 - 2² = 215103059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215103013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63513 + ... + 66813.

It is an arithmetic number, because the mean of its divisors is an integer number (10698480).

Almost surely, 2^215103063 is an apocalyptic number.

215103063 is a deficient number, since it is larger than the sum of its proper divisors (127248297).

215103063 is a wasteful number, since it uses less digits than its factorization.

215103063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 215103063 is about 14666.3922966761. The cubic root of 215103063 is about 599.1683505758.

Adding to 215103063 its reverse (360301512), we get a palindrome (575404575).

The spelling of 215103063 in words is "two hundred fifteen million, one hundred three thousand, sixty-three".