145073173 has 12 divisors (see below), whose sum is σ = 169066560. Its totient is φ = 124121592.

The previous prime is 145073171. The next prime is 145073183. The reversal of 145073173 is 371370541.

It is not a de Polignac number, because 145073173 - 2¹ = 145073171 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 (145073171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27940 + ... + 32722.

It is an arithmetic number, because the mean of its divisors is an integer number (14088880).

Almost surely, 2^145073173 is an apocalyptic number.

It is an amenable number.

145073173 is a deficient number, since it is larger than the sum of its proper divisors (23993387).

145073173 is an equidigital number, since it uses as much as digits as its factorization.

145073173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416 (or 5409 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 145073173 is about 12044.6325390192. The cubic root of 145073173 is about 525.4471449823.

The spelling of 145073173 in words is "one hundred forty-five million, seventy-three thousand, one hundred seventy-three".