140338310173 has 4 divisors (see below), whose sum is σ = 141050687580. Its totient is φ = 139625932768.

The previous prime is 140338310141. The next prime is 140338310179. The reversal of 140338310173 is 371013833041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73442626009 + 66895684164 = 271003^2 + 258642^2 .

It is a cyclic number.

It is not a de Polignac number, because 140338310173 - 2⁵ = 140338310141 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 (140338310179) 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, 356188408 + ... + 356188801.

It is an arithmetic number, because the mean of its divisors is an integer number (35262671895).

Almost surely, 2^140338310173 is an apocalyptic number.

It is an amenable number.

140338310173 is a deficient number, since it is larger than the sum of its proper divisors (712377407).

140338310173 is an equidigital number, since it uses as much as digits as its factorization.

140338310173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712377406.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 140338310173 in words is "one hundred forty billion, three hundred thirty-eight million, three hundred ten thousand, one hundred seventy-three".