216757146 has 16 divisors (see below), whose sum is σ = 447499008. Its totient is φ = 69921600.

The previous prime is 216757133. The next prime is 216757159. The reversal of 216757146 is 641757612.

216757146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216757133) and next prime (216757159).

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 in 7 ways as a sum of consecutive naturals, for example, 582495 + ... + 582866.

It is an arithmetic number, because the mean of its divisors is an integer number (27968688).

Almost surely, 2^216757146 is an apocalyptic number.

216757146 is an abundant number, since it is smaller than the sum of its proper divisors (230741862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216757146 is a wasteful number, since it uses less digits than its factorization.

216757146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165397.

The product of its digits is 70560, while the sum is 39.

The square root of 216757146 is about 14722.6745532189. The cubic root of 216757146 is about 600.7002435581.

The spelling of 216757146 in words is "two hundred sixteen million, seven hundred fifty-seven thousand, one hundred forty-six".