16875138 has 32 divisors (see below), whose sum is σ = 39121920. Its totient is φ = 4752720.

The previous prime is 16875137. The next prime is 16875143. The reversal of 16875138 is 83157861.

It is a junction number, because it is equal to n+sod(n) for n = 16875096 and 16875105.

It is not an unprimeable number, because it can be changed into a prime (16875137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153 + ... + 5811.

It is an arithmetic number, because the mean of its divisors is an integer number (1222560).

Almost surely, 2^16875138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16875138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19560960).

16875138 is an abundant number, since it is smaller than the sum of its proper divisors (22246782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16875138 is a wasteful number, since it uses less digits than its factorization.

16875138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742.

The product of its digits is 40320, while the sum is 39.

The square root of 16875138 is about 4107.9359780795. The cubic root of 16875138 is about 256.4970911898.

The spelling of 16875138 in words is "sixteen million, eight hundred seventy-five thousand, one hundred thirty-eight".