172451441 has 2 divisors, whose sum is σ = 172451442. Its totient is φ = 172451440.

The previous prime is 172451399. The next prime is 172451449. The reversal of 172451441 is 144154271.

It is a happy number.

172451441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161823841 + 10627600 = 12721^2 + 3260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172451441 is a prime.

It is not a weakly prime, because it can be changed into another prime (172451449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86225720 + 86225721.

It is an arithmetic number, because the mean of its divisors is an integer number (86225721).

Almost surely, 2^172451441 is an apocalyptic number.

It is an amenable number.

172451441 is a deficient number, since it is larger than the sum of its proper divisors (1).

172451441 is an equidigital number, since it uses as much as digits as its factorization.

172451441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 29.

The square root of 172451441 is about 13132.0767969122. The cubic root of 172451441 is about 556.6159015622.

The spelling of 172451441 in words is "one hundred seventy-two million, four hundred fifty-one thousand, four hundred forty-one".