140785317 has 8 divisors (see below), whose sum is σ = 208570880. Its totient is φ = 93856860.

The previous prime is 140785301. The next prime is 140785321. The reversal of 140785317 is 713587041.

It is not a de Polignac number, because 140785317 - 2⁴ = 140785301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140785367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607109 + ... + 2607162.

It is an arithmetic number, because the mean of its divisors is an integer number (26071360).

Almost surely, 2^140785317 is an apocalyptic number.

It is an amenable number.

140785317 is a deficient number, since it is larger than the sum of its proper divisors (67785563).

140785317 is an equidigital number, since it uses as much as digits as its factorization.

140785317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214280 (or 5214274 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 140785317 is about 11865.2988584359. The cubic root of 140785317 is about 520.2184942253.

The spelling of 140785317 in words is "one hundred forty million, seven hundred eighty-five thousand, three hundred seventeen".