13850138 has 8 divisors (see below), whose sum is σ = 21997332. Its totient is φ = 6517696.

The previous prime is 13850131. The next prime is 13850143. The reversal of 13850138 is 83105831.

13850138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13667809 + 182329 = 3697^2 + 427^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 13850138.

It is not an unprimeable number, because it can be changed into a prime (13850131) 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, 203645 + ... + 203712.

Almost surely, 2^13850138 is an apocalyptic number.

13850138 is a deficient number, since it is larger than the sum of its proper divisors (8147194).

13850138 is a wasteful number, since it uses less digits than its factorization.

13850138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407376.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 13850138 is about 3721.5773537574. The cubic root of 13850138 is about 240.1511663405.

Adding to 13850138 its reverse (83105831), we get a palindrome (96955969).

The spelling of 13850138 in words is "thirteen million, eight hundred fifty thousand, one hundred thirty-eight".