14840138 has 4 divisors (see below), whose sum is σ = 22260210. Its totient is φ = 7420068.

The previous prime is 14840131. The next prime is 14840143. The reversal of 14840138 is 83104841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13344409 + 1495729 = 3653^2 + 1223^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 14840138.

It is not an unprimeable number, because it can be changed into a prime (14840131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710033 + ... + 3710036.

Almost surely, 2^14840138 is an apocalyptic number.

14840138 is a deficient number, since it is larger than the sum of its proper divisors (7420072).

14840138 is an equidigital number, since it uses as much as digits as its factorization.

14840138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420071.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 14840138 is about 3852.2899683175. The cubic root of 14840138 is about 245.7419573706.

Adding to 14840138 its reverse (83104841), we get a palindrome (97944979).

The spelling of 14840138 in words is "fourteen million, eight hundred forty thousand, one hundred thirty-eight".