140782347 has 8 divisors (see below), whose sum is σ = 208566480. Its totient is φ = 93854880.

The previous prime is 140782337. The next prime is 140782349. The reversal of 140782347 is 743287041.

It is a happy number.

It is not a de Polignac number, because 140782347 - 2⁴ = 140782331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140782349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607054 + ... + 2607107.

It is an arithmetic number, because the mean of its divisors is an integer number (26070810).

Almost surely, 2^140782347 is an apocalyptic number.

140782347 is a deficient number, since it is larger than the sum of its proper divisors (67784133).

140782347 is an equidigital number, since it uses as much as digits as its factorization.

140782347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5214170 (or 5214164 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 140782347 is about 11865.1737029004. The cubic root of 140782347 is about 520.2148360318.

The spelling of 140782347 in words is "one hundred forty million, seven hundred eighty-two thousand, three hundred forty-seven".