16138235 has 8 divisors (see below), whose sum is σ = 19731600. Its totient is φ = 12666784.

The previous prime is 16138231. The next prime is 16138247. The reversal of 16138235 is 53283161.

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

It is a cyclic number.

It is not a de Polignac number, because 16138235 - 2² = 16138231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16138198 and 16138207.

It is not an unprimeable number, because it can be changed into a prime (16138231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30185 + ... + 30714.

It is an arithmetic number, because the mean of its divisors is an integer number (2466450).

Almost surely, 2^16138235 is an apocalyptic number.

16138235 is a deficient number, since it is larger than the sum of its proper divisors (3593365).

16138235 is an equidigital number, since it uses as much as digits as its factorization.

16138235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60957.

The product of its digits is 4320, while the sum is 29.

The square root of 16138235 is about 4017.2422132602. The cubic root of 16138235 is about 252.7078183225.

The spelling of 16138235 in words is "sixteen million, one hundred thirty-eight thousand, two hundred thirty-five".