140968647 has 16 divisors (see below), whose sum is σ = 209153280. Its totient is φ = 93839256.

The previous prime is 140968571. The next prime is 140968649. The reversal of 140968647 is 746869041.

It is not a de Polignac number, because 140968647 - 2⁷ = 140968519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140968649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16548 + ... + 23574.

It is an arithmetic number, because the mean of its divisors is an integer number (13072080).

Almost surely, 2^140968647 is an apocalyptic number.

140968647 is a deficient number, since it is larger than the sum of its proper divisors (68184633).

140968647 is an equidigital number, since it uses as much as digits as its factorization.

140968647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779 (or 7773 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 140968647 is about 11873.0218141802. The cubic root of 140968647 is about 520.4442050002. Note that the first 3 decimals are identical.

The spelling of 140968647 in words is "one hundred forty million, nine hundred sixty-eight thousand, six hundred forty-seven".