216126146 has 8 divisors (see below), whose sum is σ = 328293120. Its totient is φ = 106695108.

The previous prime is 216126137. The next prime is 216126161. The reversal of 216126146 is 641621612.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 683786 + ... + 684101.

It is an arithmetic number, because the mean of its divisors is an integer number (41036640).

Almost surely, 2^216126146 is an apocalyptic number.

216126146 is a deficient number, since it is larger than the sum of its proper divisors (112166974).

216126146 is a wasteful number, since it uses less digits than its factorization.

216126146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367968.

The product of its digits is 3456, while the sum is 29.

The square root of 216126146 is about 14701.2294043730. The cubic root of 216126146 is about 600.1167791214.

Adding to 216126146 its reverse (641621612), we get a palindrome (857747758).

The spelling of 216126146 in words is "two hundred sixteen million, one hundred twenty-six thousand, one hundred forty-six".