14138947 has 2 divisors, whose sum is σ = 14138948. Its totient is φ = 14138946.

The previous prime is 14138939. The next prime is 14138953. The reversal of 14138947 is 74983141.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14138947 - 2³ = 14138939 is a prime.

It is not a weakly prime, because it can be changed into another prime (14138977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7069473 + 7069474.

It is an arithmetic number, because the mean of its divisors is an integer number (7069474).

Almost surely, 2^14138947 is an apocalyptic number.

14138947 is a deficient number, since it is larger than the sum of its proper divisors (1).

14138947 is an equidigital number, since it uses as much as digits as its factorization.

14138947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 14138947 is about 3760.1791180740. The cubic root of 14138947 is about 241.8089412465.

The spelling of 14138947 in words is "fourteen million, one hundred thirty-eight thousand, nine hundred forty-seven".