172334861 has 2 divisors, whose sum is σ = 172334862. Its totient is φ = 172334860.

The previous prime is 172334839. The next prime is 172334867. The reversal of 172334861 is 168433271.

172334861 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., 118679236 + 53655625 = 10894^2 + 7325^2 .

It is a cyclic number.

It is not a de Polignac number, because 172334861 - 2¹⁸ = 172072717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172334867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86167430 + 86167431.

It is an arithmetic number, because the mean of its divisors is an integer number (86167431).

Almost surely, 2^172334861 is an apocalyptic number.

It is an amenable number.

172334861 is a deficient number, since it is larger than the sum of its proper divisors (1).

172334861 is an equidigital number, since it uses as much as digits as its factorization.

172334861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 172334861 is about 13127.6372969396. The cubic root of 172334861 is about 556.4904461312.

The spelling of 172334861 in words is "one hundred seventy-two million, three hundred thirty-four thousand, eight hundred sixty-one".