16214440531 has 4 divisors (see below), whose sum is σ = 16773559200. Its totient is φ = 15655321864.

The previous prime is 16214440507. The next prime is 16214440537. The reversal of 16214440531 is 13504441261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13504441261 = 4483 ⋅3012367.

It is a cyclic number.

It is not a de Polignac number, because 16214440531 - 2¹⁵ = 16214407763 is a prime.

It is a super-2 number, since 2×16214440531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16214440493 and 16214440502.

It is not an unprimeable number, because it can be changed into a prime (16214440537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279559291 + ... + 279559348.

It is an arithmetic number, because the mean of its divisors is an integer number (4193389800).

Almost surely, 2^16214440531 is an apocalyptic number.

16214440531 is a deficient number, since it is larger than the sum of its proper divisors (559118669).

16214440531 is an equidigital number, since it uses as much as digits as its factorization.

16214440531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559118668.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 16214440531 its reverse (13504441261), we get a palindrome (29718881792).

The spelling of 16214440531 in words is "sixteen billion, two hundred fourteen million, four hundred forty thousand, five hundred thirty-one".