216257014 has 4 divisors (see below), whose sum is σ = 324385524. Its totient is φ = 108128506.

The previous prime is 216257003. The next prime is 216257029. The reversal of 216257014 is 410752612.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×216257014² = 93534192208392392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54064252 + ... + 54064255.

It is an arithmetic number, because the mean of its divisors is an integer number (81096381).

Almost surely, 2^216257014 is an apocalyptic number.

216257014 is a deficient number, since it is larger than the sum of its proper divisors (108128510).

216257014 is a wasteful number, since it uses less digits than its factorization.

216257014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108128509.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 216257014 is about 14705.6796510736. The cubic root of 216257014 is about 600.2378816007.

The spelling of 216257014 in words is "two hundred sixteen million, two hundred fifty-seven thousand, fourteen".