16223357 has 4 divisors (see below), whose sum is σ = 16255740. Its totient is φ = 16190976.

The previous prime is 16223351. The next prime is 16223369. The reversal of 16223357 is 75332261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75332261 = 401 ⋅187861.

It can be written as a sum of positive squares in 2 ways, for example, as 8444836 + 7778521 = 2906^2 + 2789^2 .

It is a cyclic number.

It is not a de Polignac number, because 16223357 - 2⁶ = 16223293 is a prime.

It is a Duffinian number.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16223351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15428 + ... + 16445.

It is an arithmetic number, because the mean of its divisors is an integer number (4063935).

Almost surely, 2^16223357 is an apocalyptic number.

It is an amenable number.

16223357 is a deficient number, since it is larger than the sum of its proper divisors (32383).

16223357 is an equidigital number, since it uses as much as digits as its factorization.

16223357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32382.

The product of its digits is 7560, while the sum is 29.

The square root of 16223357 is about 4027.8228610504. The cubic root of 16223357 is about 253.1513464829.

The spelling of 16223357 in words is "sixteen million, two hundred twenty-three thousand, three hundred fifty-seven".