216100003 has 16 divisors (see below), whose sum is σ = 251858880. Its totient is φ = 181584000.

The previous prime is 216099953. The next prime is 216100037. The reversal of 216100003 is 300001612.

216100003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216100003 is a prime.

It is a super-2 number, since 2×216100003² = 93398422593200018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216100403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165453 + ... + 166753.

It is an arithmetic number, because the mean of its divisors is an integer number (15741180).

Almost surely, 2^216100003 is an apocalyptic number.

216100003 is a deficient number, since it is larger than the sum of its proper divisors (35758877).

216100003 is a wasteful number, since it uses less digits than its factorization.

216100003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 216100003 is about 14700.3402341578. The cubic root of 216100003 is about 600.0925810842.

Adding to 216100003 its reverse (300001612), we get a palindrome (516101615).

The spelling of 216100003 in words is "two hundred sixteen million, one hundred thousand, three".