2172725743 has 2 divisors, whose sum is σ = 2172725744. Its totient is φ = 2172725742.

The previous prime is 2172725717. The next prime is 2172725747. The reversal of 2172725743 is 3475272712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2172725743 - 2²¹ = 2170628591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2172725696 and 2172725705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2172725747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086362871 + 1086362872.

It is an arithmetic number, because the mean of its divisors is an integer number (1086362872).

Almost surely, 2^2172725743 is an apocalyptic number.

2172725743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172725743 is an equidigital number, since it uses as much as digits as its factorization.

2172725743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164640, while the sum is 40.

The square root of 2172725743 is about 46612.5062939122. The cubic root of 2172725743 is about 1295.1944358053.

The spelling of 2172725743 in words is "two billion, one hundred seventy-two million, seven hundred twenty-five thousand, seven hundred forty-three".