16311361 has 4 divisors (see below), whose sum is σ = 17794224. Its totient is φ = 14828500.

The previous prime is 16311359. The next prime is 16311371.

It is a happy number.

16311361 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16311361 - 2¹ = 16311359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16311341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741415 + ... + 741436.

It is an arithmetic number, because the mean of its divisors is an integer number (4448556).

Almost surely, 2^16311361 is an apocalyptic number.

16311361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16311361 is a deficient number, since it is larger than the sum of its proper divisors (1482863).

16311361 is a wasteful number, since it uses less digits than its factorization.

16311361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482862.

The product of its digits is 324, while the sum is 22.

The square root of 16311361 is about 4038.7325982293. The cubic root of 16311361 is about 253.6082631974.

It can be divided in two parts, 1631 and 1361, that added together give a palindrome (2992).

The spelling of 16311361 in words is "sixteen million, three hundred eleven thousand, three hundred sixty-one".