16422251 has 6 divisors (see below), whose sum is σ = 17332452. Its totient is φ = 15557580.

The previous prime is 16422247. The next prime is 16422257. The reversal of 16422251 is 15222461.

It is a happy number.

It is not a de Polignac number, because 16422251 - 2² = 16422247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16422257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22385 + ... + 23106.

It is an arithmetic number, because the mean of its divisors is an integer number (2888742).

Almost surely, 2^16422251 is an apocalyptic number.

16422251 is a deficient number, since it is larger than the sum of its proper divisors (910201).

16422251 is an equidigital number, since it uses as much as digits as its factorization.

16422251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45529 (or 45510 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 16422251 is about 4052.4376614576. The cubic root of 16422251 is about 254.1816698958.

The spelling of 16422251 in words is "sixteen million, four hundred twenty-two thousand, two hundred fifty-one".