16102138 has 8 divisors (see below), whose sum is σ = 26011188. Its totient is φ = 7431744.

The previous prime is 16102133. The next prime is 16102159. The reversal of 16102138 is 83120161.

It can be written as a sum of positive squares in 2 ways, for example, as 13564489 + 2537649 = 3683^2 + 1593^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16102133) 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, 309631 + ... + 309682.

Almost surely, 2^16102138 is an apocalyptic number.

16102138 is a deficient number, since it is larger than the sum of its proper divisors (9909050).

16102138 is a wasteful number, since it uses less digits than its factorization.

16102138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619328.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 16102138 is about 4012.7469394419. The cubic root of 16102138 is about 252.5192639618.

Adding to 16102138 its reverse (83120161), we get a palindrome (99222299).

The spelling of 16102138 in words is "sixteen million, one hundred two thousand, one hundred thirty-eight".