140720947 has 2 divisors, whose sum is σ = 140720948. Its totient is φ = 140720946.

The previous prime is 140720911. The next prime is 140721023. The reversal of 140720947 is 749027041.

140720947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140720947 - 2⁷ = 140720819 is a prime.

It is not a weakly prime, because it can be changed into another prime (140780947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70360473 + 70360474.

It is an arithmetic number, because the mean of its divisors is an integer number (70360474).

Almost surely, 2^140720947 is an apocalyptic number.

140720947 is a deficient number, since it is larger than the sum of its proper divisors (1).

140720947 is an equidigital number, since it uses as much as digits as its factorization.

140720947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 140720947 is about 11862.5860165480. The cubic root of 140720947 is about 520.1391972029.

Adding to 140720947 its reverse (749027041), we get a palindrome (889747988).

The spelling of 140720947 in words is "one hundred forty million, seven hundred twenty thousand, nine hundred forty-seven".