16138451 has 8 divisors (see below), whose sum is σ = 18478944. Its totient is φ = 13806720.

The previous prime is 16138403. The next prime is 16138477. The reversal of 16138451 is 15483161.

16138451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16138451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16138481) 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, 2411 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (2309868).

Almost surely, 2^16138451 is an apocalyptic number.

16138451 is a deficient number, since it is larger than the sum of its proper divisors (2340493).

16138451 is an equidigital number, since it uses as much as digits as its factorization.

16138451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381.

The product of its digits is 2880, while the sum is 29.

The square root of 16138451 is about 4017.2690972849. The cubic root of 16138451 is about 252.7089457619.

The spelling of 16138451 in words is "sixteen million, one hundred thirty-eight thousand, four hundred fifty-one".