172373083 has 2 divisors, whose sum is σ = 172373084. Its totient is φ = 172373082.

The previous prime is 172373059. The next prime is 172373099. The reversal of 172373083 is 380373271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172373083 - 2¹³ = 172364891 is a prime.

It is not a weakly prime, because it can be changed into another prime (172373053) 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 as a sum of consecutive naturals, namely, 86186541 + 86186542.

It is an arithmetic number, because the mean of its divisors is an integer number (86186542).

Almost surely, 2^172373083 is an apocalyptic number.

172373083 is a deficient number, since it is larger than the sum of its proper divisors (1).

172373083 is an equidigital number, since it uses as much as digits as its factorization.

172373083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 172373083 is about 13129.0929998991. The cubic root of 172373083 is about 556.5315842685.

The spelling of 172373083 in words is "one hundred seventy-two million, three hundred seventy-three thousand, eighty-three".