145174173 has 4 divisors (see below), whose sum is σ = 193565568. Its totient is φ = 96782780.

The previous prime is 145174171. The next prime is 145174217. The reversal of 145174173 is 371471541.

It is a happy number.

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 145174173 - 2¹ = 145174171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145174171) 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, 24195693 + ... + 24195698.

It is an arithmetic number, because the mean of its divisors is an integer number (48391392).

Almost surely, 2^145174173 is an apocalyptic number.

It is an amenable number.

145174173 is a deficient number, since it is larger than the sum of its proper divisors (48391395).

145174173 is an equidigital number, since it uses as much as digits as its factorization.

145174173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48391394.

The product of its digits is 11760, while the sum is 33.

The square root of 145174173 is about 12048.8245484777. The cubic root of 145174173 is about 525.5690555315.

The spelling of 145174173 in words is "one hundred forty-five million, one hundred seventy-four thousand, one hundred seventy-three".