140172163 has 4 divisors (see below), whose sum is σ = 140218288. Its totient is φ = 140126040.

The previous prime is 140172161. The next prime is 140172181. The reversal of 140172163 is 361271041.

140172163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361271041 = 101 ⋅3576941.

It is a cyclic number.

It is not a de Polignac number, because 140172163 - 2¹ = 140172161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140172161) 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, 18156 + ... + 24697.

It is an arithmetic number, because the mean of its divisors is an integer number (35054572).

Almost surely, 2^140172163 is an apocalyptic number.

140172163 is a deficient number, since it is larger than the sum of its proper divisors (46125).

140172163 is an equidigital number, since it uses as much as digits as its factorization.

140172163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46124.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 140172163 is about 11839.4325455235. The cubic root of 140172163 is about 519.4621695111.

The spelling of 140172163 in words is "one hundred forty million, one hundred seventy-two thousand, one hundred sixty-three".