14139949 has 4 divisors (see below), whose sum is σ = 14175964. Its totient is φ = 14103936.

The previous prime is 14139913. The next prime is 14139953. The reversal of 14139949 is 94993141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94993141 = 19 ⋅4999639.

It can be written as a sum of positive squares in 2 ways, for example, as 7327849 + 6812100 = 2707^2 + 2610^2 .

It is a cyclic number.

It is not a de Polignac number, because 14139949 - 2⁷ = 14139821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14139959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17412 + ... + 18205.

It is an arithmetic number, because the mean of its divisors is an integer number (3543991).

Almost surely, 2^14139949 is an apocalyptic number.

It is an amenable number.

14139949 is a deficient number, since it is larger than the sum of its proper divisors (36015).

14139949 is an equidigital number, since it uses as much as digits as its factorization.

14139949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36014.

The product of its digits is 34992, while the sum is 40.

The square root of 14139949 is about 3760.3123540472. The cubic root of 14139949 is about 241.8146532898.

The spelling of 14139949 in words is "fourteen million, one hundred thirty-nine thousand, nine hundred forty-nine".