16146381 has 8 divisors (see below), whose sum is σ = 22223104. Its totient is φ = 10416960.

The previous prime is 16146367. The next prime is 16146401. The reversal of 16146381 is 18364161.

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

It is not a de Polignac number, because 16146381 - 2¹⁵ = 16113613 is a prime.

It is a super-2 number, since 2×16146381² = 521411238794322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16146331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86716 + ... + 86901.

It is an arithmetic number, because the mean of its divisors is an integer number (2777888).

Almost surely, 2^16146381 is an apocalyptic number.

It is an amenable number.

16146381 is a deficient number, since it is larger than the sum of its proper divisors (6076723).

16146381 is a wasteful number, since it uses less digits than its factorization.

16146381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173651.

The product of its digits is 3456, while the sum is 30.

The square root of 16146381 is about 4018.2559649679. The cubic root of 16146381 is about 252.7503304399.

The spelling of 16146381 in words is "sixteen million, one hundred forty-six thousand, three hundred eighty-one".