16250138 has 16 divisors (see below), whose sum is σ = 25267200. Its totient is φ = 7830000.

The previous prime is 16250131. The next prime is 16250159. The reversal of 16250138 is 83105261.

It is not an unprimeable number, because it can be changed into a prime (16250131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21263 + ... + 22013.

It is an arithmetic number, because the mean of its divisors is an integer number (1579200).

Almost surely, 2^16250138 is an apocalyptic number.

16250138 is a deficient number, since it is larger than the sum of its proper divisors (9017062).

16250138 is a wasteful number, since it uses less digits than its factorization.

16250138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 16250138 is about 4031.1459909063. The cubic root of 16250138 is about 253.2905679581.

Adding to 16250138 its reverse (83105261), we get a palindrome (99355399).

The spelling of 16250138 in words is "sixteen million, two hundred fifty thousand, one hundred thirty-eight".