140478210947 has 2 divisors, whose sum is σ = 140478210948. Its totient is φ = 140478210946.

The previous prime is 140478210853. The next prime is 140478210949. The reversal of 140478210947 is 749012874041.

It is a strong prime.

It is an emirp because it is prime and its reverse (749012874041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140478210947 - 2³⁶ = 71758734211 is a prime.

Together with 140478210949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140478210949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70239105473 + 70239105474.

It is an arithmetic number, because the mean of its divisors is an integer number (70239105474).

Almost surely, 2^140478210947 is an apocalyptic number.

140478210947 is a deficient number, since it is larger than the sum of its proper divisors (1).

140478210947 is an equidigital number, since it uses as much as digits as its factorization.

140478210947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 140478210947 in words is "one hundred forty billion, four hundred seventy-eight million, two hundred ten thousand, nine hundred forty-seven".