14691139 has 4 divisors (see below), whose sum is σ = 15197760. Its totient is φ = 14184520.

The previous prime is 14691137. The next prime is 14691143. The reversal of 14691139 is 93119641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93119641 = 59 ⋅1578299.

It is a cyclic number.

It is not a de Polignac number, because 14691139 - 2¹ = 14691137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14691133) 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, 253267 + ... + 253324.

It is an arithmetic number, because the mean of its divisors is an integer number (3799440).

Almost surely, 2^14691139 is an apocalyptic number.

14691139 is a deficient number, since it is larger than the sum of its proper divisors (506621).

14691139 is an equidigital number, since it uses as much as digits as its factorization.

14691139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506620.

The product of its digits is 5832, while the sum is 34.

The square root of 14691139 is about 3832.9021641571. The cubic root of 14691139 is about 244.9167508356.

The spelling of 14691139 in words is "fourteen million, six hundred ninety-one thousand, one hundred thirty-nine".