172713841 has 2 divisors, whose sum is σ = 172713842. Its totient is φ = 172713840.

The previous prime is 172713791. The next prime is 172713869. The reversal of 172713841 is 148317271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161823841 + 10890000 = 12721^2 + 3300^2 .

It is a cyclic number.

It is not a de Polignac number, because 172713841 - 2¹⁵ = 172681073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172713797 and 172713806.

It is not a weakly prime, because it can be changed into another prime (172713041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86356920 + 86356921.

It is an arithmetic number, because the mean of its divisors is an integer number (86356921).

Almost surely, 2^172713841 is an apocalyptic number.

It is an amenable number.

172713841 is a deficient number, since it is larger than the sum of its proper divisors (1).

172713841 is an equidigital number, since it uses as much as digits as its factorization.

172713841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 34.

The square root of 172713841 is about 13142.0638029192. The cubic root of 172713841 is about 556.8980718073.

It can be divided in two parts, 17271 and 3841, that added together give a palindrome (21112).

The spelling of 172713841 in words is "one hundred seventy-two million, seven hundred thirteen thousand, eight hundred forty-one".