140344263 has 6 divisors (see below), whose sum is σ = 202719504. Its totient is φ = 93562836.

The previous prime is 140344261. The next prime is 140344273. The reversal of 140344263 is 362443041.

It is not a de Polignac number, because 140344263 - 2¹ = 140344261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140344261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7796895 + ... + 7796912.

It is an arithmetic number, because the mean of its divisors is an integer number (33786584).

Almost surely, 2^140344263 is an apocalyptic number.

140344263 is a deficient number, since it is larger than the sum of its proper divisors (62375241).

140344263 is a wasteful number, since it uses less digits than its factorization.

140344263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15593813 (or 15593810 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 140344263 is about 11846.6984008204. The cubic root of 140344263 is about 519.6746769375.

The spelling of 140344263 in words is "one hundred forty million, three hundred forty-four thousand, two hundred sixty-three".