172530041 has 4 divisors (see below), whose sum is σ = 172557684. Its totient is φ = 172502400.

The previous prime is 172530023. The next prime is 172530053. The reversal of 172530041 is 140035271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140035271 = 4733 ⋅29587.

It can be written as a sum of positive squares in 2 ways, for example, as 67897600 + 104632441 = 8240^2 + 10229^2 .

It is a cyclic number.

It is not a de Polignac number, because 172530041 - 2¹⁴ = 172513657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172529989 and 172530016.

It is not an unprimeable number, because it can be changed into a prime (172530341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (43139421).

Almost surely, 2^172530041 is an apocalyptic number.

It is an amenable number.

172530041 is a deficient number, since it is larger than the sum of its proper divisors (27643).

172530041 is an equidigital number, since it uses as much as digits as its factorization.

172530041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27642.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 172530041 is about 13135.0691281013. The cubic root of 172530041 is about 556.7004536048.

The spelling of 172530041 in words is "one hundred seventy-two million, five hundred thirty thousand, forty-one".