16222751 has 8 divisors (see below), whose sum is σ = 17819520. Its totient is φ = 14700312.

The previous prime is 16222747. The next prime is 16222763. The reversal of 16222751 is 15722261.

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

It is not a de Polignac number, because 16222751 - 2² = 16222747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16222751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16222741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18125 + ... + 18998.

It is an arithmetic number, because the mean of its divisors is an integer number (2227440).

Almost surely, 2^16222751 is an apocalyptic number.

16222751 is a deficient number, since it is larger than the sum of its proper divisors (1596769).

16222751 is a wasteful number, since it uses less digits than its factorization.

16222751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37165.

The product of its digits is 1680, while the sum is 26.

The square root of 16222751 is about 4027.7476336037. The cubic root of 16222751 is about 253.1481944097.

The spelling of 16222751 in words is "sixteen million, two hundred twenty-two thousand, seven hundred fifty-one".