16223136 has 24 divisors (see below), whose sum is σ = 42585984. Its totient is φ = 5407680.

The previous prime is 16223111. The next prime is 16223149. The reversal of 16223136 is 63132261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

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, 84400 + ... + 84591.

It is an arithmetic number, because the mean of its divisors is an integer number (1774416).

Almost surely, 2^16223136 is an apocalyptic number.

16223136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16223136 is an abundant number, since it is smaller than the sum of its proper divisors (26362848).

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

16223136 is a wasteful number, since it uses less digits than its factorization.

16223136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169004 (or 168996 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 16223136 is about 4027.7954267813. The cubic root of 16223136 is about 253.1501969735.

Adding to 16223136 its reverse (63132261), we get a palindrome (79355397).

The spelling of 16223136 in words is "sixteen million, two hundred twenty-three thousand, one hundred thirty-six".