16161323 has 8 divisors (see below), whose sum is σ = 17258880. Its totient is φ = 15099840.

The previous prime is 16161319. The next prime is 16161329. The reversal of 16161323 is 32316161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16161323 - 2² = 16161319 is a prime.

It is a super-2 number, since 2×16161323² = 522376722220658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8090 + ... + 9887.

It is an arithmetic number, because the mean of its divisors is an integer number (2157360).

Almost surely, 2^16161323 is an apocalyptic number.

16161323 is a deficient number, since it is larger than the sum of its proper divisors (1097557).

16161323 is a wasteful number, since it uses less digits than its factorization.

16161323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18037.

The product of its digits is 648, while the sum is 23.

The square root of 16161323 is about 4020.1147993559. The cubic root of 16161323 is about 252.8282721795.

Adding to 16161323 its reverse (32316161), we get a palindrome (48477484).

The spelling of 16161323 in words is "sixteen million, one hundred sixty-one thousand, three hundred twenty-three".