16211242 has 4 divisors (see below), whose sum is σ = 24316866. Its totient is φ = 8105620.

The previous prime is 16211231. The next prime is 16211257. The reversal of 16211242 is 24211261.

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

It can be written as a sum of positive squares in only one way, i.e., 9865881 + 6345361 = 3141^2 + 2519^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4052809 + ... + 4052812.

Almost surely, 2^16211242 is an apocalyptic number.

16211242 is a deficient number, since it is larger than the sum of its proper divisors (8105624).

16211242 is an equidigital number, since it uses as much as digits as its factorization.

16211242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8105623.

The product of its digits is 192, while the sum is 19.

The square root of 16211242 is about 4026.3186659776. The cubic root of 16211242 is about 253.0883161186.

Adding to 16211242 its sum of digits (19), we get a palindrome (16211261).

The spelling of 16211242 in words is "sixteen million, two hundred eleven thousand, two hundred forty-two".