148320173 has 4 divisors (see below), whose sum is σ = 149402940. Its totient is φ = 147237408.

The previous prime is 148320157. The next prime is 148320229. The reversal of 148320173 is 371023841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110103049 + 38217124 = 10493^2 + 6182^2 .

It is a cyclic number.

It is not a de Polignac number, because 148320173 - 2⁴ = 148320157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148320143) 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 in 3 ways as a sum of consecutive naturals, for example, 541178 + ... + 541451.

It is an arithmetic number, because the mean of its divisors is an integer number (37350735).

Almost surely, 2^148320173 is an apocalyptic number.

It is an amenable number.

148320173 is a deficient number, since it is larger than the sum of its proper divisors (1082767).

148320173 is a wasteful number, since it uses less digits than its factorization.

148320173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082766.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 148320173 is about 12178.6769806905. The cubic root of 148320173 is about 529.3384090929.

The spelling of 148320173 in words is "one hundred forty-eight million, three hundred twenty thousand, one hundred seventy-three".