14387139 has 30 divisors (see below), whose sum is σ = 23294436. Its totient is φ = 8845200.

The previous prime is 14387101. The next prime is 14387173. The reversal of 14387139 is 93178341.

It is a happy number.

It is not a de Polignac number, because 14387139 - 2¹⁶ = 14321603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14387239) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13164 + ... + 14214.

Almost surely, 2^14387139 is an apocalyptic number.

14387139 is a deficient number, since it is larger than the sum of its proper divisors (8907297).

14387139 is a wasteful number, since it uses less digits than its factorization.

14387139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1067 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 14387139 is about 3793.0382281227. The cubic root of 14387139 is about 243.2156293608.

The spelling of 14387139 in words is "fourteen million, three hundred eighty-seven thousand, one hundred thirty-nine".