16138833 has 4 divisors (see below), whose sum is σ = 21518448. Its totient is φ = 10759220.

The previous prime is 16138823. The next prime is 16138841. The reversal of 16138833 is 33883161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16138833 - 2²² = 11944529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16138794 and 16138803.

It is not an unprimeable number, because it can be changed into a prime (16138823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2689803 + ... + 2689808.

It is an arithmetic number, because the mean of its divisors is an integer number (5379612).

Almost surely, 2^16138833 is an apocalyptic number.

It is an amenable number.

16138833 is a deficient number, since it is larger than the sum of its proper divisors (5379615).

16138833 is an equidigital number, since it uses as much as digits as its factorization.

16138833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379614.

The product of its digits is 10368, while the sum is 33.

The square root of 16138833 is about 4017.3166417399. The cubic root of 16138833 is about 252.7109396347.

The spelling of 16138833 in words is "sixteen million, one hundred thirty-eight thousand, eight hundred thirty-three".