16323261 has 16 divisors (see below), whose sum is σ = 23907840. Its totient is φ = 9860400.

The previous prime is 16323239. The next prime is 16323301. The reversal of 16323261 is 16232361.

It is a happy number.

It is not a de Polignac number, because 16323261 - 2¹⁰ = 16322237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16323211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4915 + ... + 7536.

It is an arithmetic number, because the mean of its divisors is an integer number (1494240).

Almost surely, 2^16323261 is an apocalyptic number.

It is an amenable number.

16323261 is a deficient number, since it is larger than the sum of its proper divisors (7584579).

16323261 is a wasteful number, since it uses less digits than its factorization.

16323261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12496.

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

The square root of 16323261 is about 4040.2055640772. The cubic root of 16323261 is about 253.6699217497.

The spelling of 16323261 in words is "sixteen million, three hundred twenty-three thousand, two hundred sixty-one".