140781193 has 8 divisors (see below), whose sum is σ = 161186112. Its totient is φ = 120449616.

The previous prime is 140781191. The next prime is 140781209. The reversal of 140781193 is 391187041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140781193 - 2¹ = 140781191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140781191) 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, 14155 + ... + 21952.

It is an arithmetic number, because the mean of its divisors is an integer number (20148264).

Almost surely, 2^140781193 is an apocalyptic number.

It is an amenable number.

140781193 is a deficient number, since it is larger than the sum of its proper divisors (20404919).

140781193 is an equidigital number, since it uses as much as digits as its factorization.

140781193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36671.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 140781193 is about 11865.1250730871. The cubic root of 140781193 is about 520.2134146189.

The spelling of 140781193 in words is "one hundred forty million, seven hundred eighty-one thousand, one hundred ninety-three".