16012749 has 8 divisors (see below), whose sum is σ = 21927520. Its totient is φ = 10386576.

The previous prime is 16012741. The next prime is 16012753. The reversal of 16012749 is 94721061.

It is a happy number.

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

It is not a de Polignac number, because 16012749 - 2³ = 16012741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16012741) 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, 72019 + ... + 72240.

It is an arithmetic number, because the mean of its divisors is an integer number (2740940).

Almost surely, 2^16012749 is an apocalyptic number.

It is an amenable number.

16012749 is a deficient number, since it is larger than the sum of its proper divisors (5914771).

16012749 is a wasteful number, since it uses less digits than its factorization.

16012749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144299.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 16012749 is about 4001.5933076713. The cubic root of 16012749 is about 252.0511202666.

It can be divided in two parts, 16012 and 749, that added together give a palindrome (16761).

The spelling of 16012749 in words is "sixteen million, twelve thousand, seven hundred forty-nine".