145093171 has 4 divisors (see below), whose sum is σ = 147830832. Its totient is φ = 142355512.

The previous prime is 145093163. The next prime is 145093189. The reversal of 145093171 is 171390541.

145093171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145093171 - 2³ = 145093163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145093141) 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, 1368751 + ... + 1368856.

It is an arithmetic number, because the mean of its divisors is an integer number (36957708).

Almost surely, 2^145093171 is an apocalyptic number.

145093171 is a deficient number, since it is larger than the sum of its proper divisors (2737661).

145093171 is an equidigital number, since it uses as much as digits as its factorization.

145093171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737660.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 145093171 is about 12045.4626727245. The cubic root of 145093171 is about 525.4712877626.

The spelling of 145093171 in words is "one hundred forty-five million, ninety-three thousand, one hundred seventy-one".