173920057 has 2 divisors, whose sum is σ = 173920058. Its totient is φ = 173920056.

The previous prime is 173920049. The next prime is 173920093. The reversal of 173920057 is 750029371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101687056 + 72233001 = 10084^2 + 8499^2 .

It is a cyclic number.

It is not a de Polignac number, because 173920057 - 2³ = 173920049 is a prime.

It is not a weakly prime, because it can be changed into another prime (173920027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86960028 + 86960029.

It is an arithmetic number, because the mean of its divisors is an integer number (86960029).

Almost surely, 2^173920057 is an apocalyptic number.

It is an amenable number.

173920057 is a deficient number, since it is larger than the sum of its proper divisors (1).

173920057 is an equidigital number, since it uses as much as digits as its factorization.

173920057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 173920057 is about 13187.8753785437. The cubic root of 173920057 is about 558.1915053337.

The spelling of 173920057 in words is "one hundred seventy-three million, nine hundred twenty thousand, fifty-seven".