215103424 has 28 divisors (see below), whose sum is σ = 427582584. Its totient is φ = 107366144.

The previous prime is 215103409. The next prime is 215103481. The reversal of 215103424 is 424301512.

It is a junction number, because it is equal to n+sod(n) for n = 215103395 and 215103404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39219 + ... + 44365.

Almost surely, 2^215103424 is an apocalyptic number.

It is an amenable number.

215103424 is a deficient number, since it is larger than the sum of its proper divisors (212479160).

215103424 is an equidigital number, since it uses as much as digits as its factorization.

215103424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5812 (or 5802 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 215103424 is about 14666.4046037193. The cubic root of 215103424 is about 599.1686857634.

Adding to 215103424 its reverse (424301512), we get a palindrome (639404936).

The spelling of 215103424 in words is "two hundred fifteen million, one hundred three thousand, four hundred twenty-four".