173223045 has 12 divisors (see below), whose sum is σ = 300253356. Its totient is φ = 92385600.

The previous prime is 173223023. The next prime is 173223053. The reversal of 173223045 is 540322371.

It can be written as a sum of positive squares in 2 ways, for example, as 45239076 + 127983969 = 6726^2 + 11313^2 .

It is not a de Polignac number, because 173223045 - 2¹¹ = 173220997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1924656 + ... + 1924745.

It is an arithmetic number, because the mean of its divisors is an integer number (25021113).

Almost surely, 2^173223045 is an apocalyptic number.

173223045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

173223045 is a deficient number, since it is larger than the sum of its proper divisors (127030311).

173223045 is a wasteful number, since it uses less digits than its factorization.

173223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849412 (or 3849409 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 173223045 is about 13161.4226054785. The cubic root of 173223045 is about 557.4448268645. Note that the first 3 decimals are identical.

The spelling of 173223045 in words is "one hundred seventy-three million, two hundred twenty-three thousand, forty-five".