16146433 has 4 divisors (see below), whose sum is σ = 16166740. Its totient is φ = 16126128.

The previous prime is 16146421. The next prime is 16146439. The reversal of 16146433 is 33464161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33464161 = 367 ⋅91183.

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 5726449 = 3228^2 + 2393^2 .

It is a cyclic number.

It is not a de Polignac number, because 16146433 - 2⁵ = 16146401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16146439) 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, 8910 + ... + 10567.

It is an arithmetic number, because the mean of its divisors is an integer number (4041685).

It is a Proth number, since it is equal to 1971 ⋅ 2¹³ + 1 and 1971 < 2¹³.

Almost surely, 2^16146433 is an apocalyptic number.

It is an amenable number.

16146433 is a deficient number, since it is larger than the sum of its proper divisors (20307).

16146433 is an equidigital number, since it uses as much as digits as its factorization.

16146433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20306.

The product of its digits is 5184, while the sum is 28.

The square root of 16146433 is about 4018.2624354315. The cubic root of 16146433 is about 252.7506017701.

The spelling of 16146433 in words is "sixteen million, one hundred forty-six thousand, four hundred thirty-three".