140207263 has 4 divisors (see below), whose sum is σ = 160236880. Its totient is φ = 120177648.

The previous prime is 140207261. The next prime is 140207273. The reversal of 140207263 is 362702041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362702041 = 13 ⋅27900157.

It is a cyclic number.

It is not a de Polignac number, because 140207263 - 2¹ = 140207261 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 (140207261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10014798 + ... + 10014811.

It is an arithmetic number, because the mean of its divisors is an integer number (40059220).

Almost surely, 2^140207263 is an apocalyptic number.

140207263 is a deficient number, since it is larger than the sum of its proper divisors (20029617).

140207263 is an equidigital number, since it uses as much as digits as its factorization.

140207263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20029616.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 140207263 is about 11840.9147872958. The cubic root of 140207263 is about 519.5055247682.

The spelling of 140207263 in words is "one hundred forty million, two hundred seven thousand, two hundred sixty-three".