145111173 has 4 divisors (see below), whose sum is σ = 193481568. Its totient is φ = 96740780.

The previous prime is 145111171. The next prime is 145111223. The reversal of 145111173 is 371111541.

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.

It is a cyclic number.

It is not a de Polignac number, because 145111173 - 2¹ = 145111171 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145111171) 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 3 ways as a sum of consecutive naturals, for example, 24185193 + ... + 24185198.

It is an arithmetic number, because the mean of its divisors is an integer number (48370392).

Almost surely, 2^145111173 is an apocalyptic number.

It is an amenable number.

145111173 is a deficient number, since it is larger than the sum of its proper divisors (48370395).

145111173 is an equidigital number, since it uses as much as digits as its factorization.

145111173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48370394.

The product of its digits is 420, while the sum is 24.

The square root of 145111173 is about 12046.2099018737. The cubic root of 145111173 is about 525.4930189552.

The spelling of 145111173 in words is "one hundred forty-five million, one hundred eleven thousand, one hundred seventy-three".