14139945 has 24 divisors (see below), whose sum is σ = 24648000. Its totient is φ = 7498656.

The previous prime is 14139913. The next prime is 14139953. The reversal of 14139945 is 54993141.

It is a happy number.

14139945 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14139945 - 2⁵ = 14139913 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8166 + ... + 9744.

It is an arithmetic number, because the mean of its divisors is an integer number (1027000).

Almost surely, 2^14139945 is an apocalyptic number.

14139945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14139945 is a deficient number, since it is larger than the sum of its proper divisors (10508055).

14139945 is a wasteful number, since it uses less digits than its factorization.

14139945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789 (or 1786 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 14139945 is about 3760.3118221765. The cubic root of 14139945 is about 241.8146304878.

The spelling of 14139945 in words is "fourteen million, one hundred thirty-nine thousand, nine hundred forty-five".