145207173 has 16 divisors (see below), whose sum is σ = 198696960. Its totient is φ = 94274544.

The previous prime is 145207169. The next prime is 145207207. The reversal of 145207173 is 371702541.

It is not a de Polignac number, because 145207173 - 2² = 145207169 is a prime.

It is a super-3 number, since 3×145207173³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145207173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145207103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47938 + ... + 50876.

It is an arithmetic number, because the mean of its divisors is an integer number (12418560).

Almost surely, 2^145207173 is an apocalyptic number.

It is an amenable number.

145207173 is a deficient number, since it is larger than the sum of its proper divisors (53489787).

145207173 is a wasteful number, since it uses less digits than its factorization.

145207173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 145207173 is about 12050.1938988549. The cubic root of 145207173 is about 525.6088754354.

The spelling of 145207173 in words is "one hundred forty-five million, two hundred seven thousand, one hundred seventy-three".