16133243 has 4 divisors (see below), whose sum is σ = 18438000. Its totient is φ = 13828488.

The previous prime is 16133239. The next prime is 16133287. The reversal of 16133243 is 34233161.

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

It is a cyclic number.

It is not a de Polignac number, because 16133243 - 2² = 16133239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16133203) 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, 1152368 + ... + 1152381.

It is an arithmetic number, because the mean of its divisors is an integer number (4609500).

Almost surely, 2^16133243 is an apocalyptic number.

16133243 is a deficient number, since it is larger than the sum of its proper divisors (2304757).

16133243 is an equidigital number, since it uses as much as digits as its factorization.

16133243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304756.

The product of its digits is 1296, while the sum is 23.

The square root of 16133243 is about 4016.6208434454. The cubic root of 16133243 is about 252.6817591422.

The spelling of 16133243 in words is "sixteen million, one hundred thirty-three thousand, two hundred forty-three".