16144723 has 4 divisors (see below), whose sum is σ = 18451120. Its totient is φ = 13838328.

The previous prime is 16144717. The next prime is 16144727. The reversal of 16144723 is 32744161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32744161 = 29 ⋅1129109.

It is not a de Polignac number, because 16144723 - 2¹³ = 16136531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16144691 and 16144700.

It is not an unprimeable number, because it can be changed into a prime (16144727) 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, 1153188 + ... + 1153201.

It is an arithmetic number, because the mean of its divisors is an integer number (4612780).

Almost surely, 2^16144723 is an apocalyptic number.

16144723 is a deficient number, since it is larger than the sum of its proper divisors (2306397).

16144723 is an equidigital number, since it uses as much as digits as its factorization.

16144723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306396.

The product of its digits is 4032, while the sum is 28.

The square root of 16144723 is about 4018.0496512612. The cubic root of 16144723 is about 252.7416788749.

Adding to 16144723 its reverse (32744161), we get a palindrome (48888884).

The spelling of 16144723 in words is "sixteen million, one hundred forty-four thousand, seven hundred twenty-three".