172761241 has 2 divisors, whose sum is σ = 172761242. Its totient is φ = 172761240.

The previous prime is 172761227. The next prime is 172761283. The reversal of 172761241 is 142167271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172265625 + 495616 = 13125^2 + 704^2 .

It is a cyclic number.

It is not a de Polignac number, because 172761241 - 2¹¹ = 172759193 is a prime.

It is not a weakly prime, because it can be changed into another prime (172761341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86380620 + 86380621.

It is an arithmetic number, because the mean of its divisors is an integer number (86380621).

Almost surely, 2^172761241 is an apocalyptic number.

It is an amenable number.

172761241 is a deficient number, since it is larger than the sum of its proper divisors (1).

172761241 is an equidigital number, since it uses as much as digits as its factorization.

172761241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 31.

The square root of 172761241 is about 13143.8670489320. The cubic root of 172761241 is about 556.9490126275.

The spelling of 172761241 in words is "one hundred seventy-two million, seven hundred sixty-one thousand, two hundred forty-one".