148905173 has 4 divisors (see below), whose sum is σ = 152368128. Its totient is φ = 145442220.

The previous prime is 148905161. The next prime is 148905179. The reversal of 148905173 is 371509841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 371509841 = 67 ⋅5544923.

It is a cyclic number.

It is not a de Polignac number, because 148905173 - 2¹⁰ = 148904149 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 (148905179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731413 + ... + 1731498.

It is an arithmetic number, because the mean of its divisors is an integer number (38092032).

Almost surely, 2^148905173 is an apocalyptic number.

It is an amenable number.

148905173 is a deficient number, since it is larger than the sum of its proper divisors (3462955).

148905173 is an equidigital number, since it uses as much as digits as its factorization.

148905173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462954.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 148905173 is about 12202.6707322619. The cubic root of 148905173 is about 530.0334297177.

The spelling of 148905173 in words is "one hundred forty-eight million, nine hundred five thousand, one hundred seventy-three".