145215175 has 18 divisors (see below), whose sum is σ = 209467248. Its totient is φ = 99575280.

The previous prime is 145215167. The next prime is 145215181. The reversal of 145215175 is 571512541.

It is not a de Polignac number, because 145215175 - 2³ = 145215167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 58047 + ... + 60496.

Almost surely, 2^145215175 is an apocalyptic number.

145215175 is a deficient number, since it is larger than the sum of its proper divisors (64252073).

145215175 is a wasteful number, since it uses less digits than its factorization.

145215175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118567 (or 118555 counting only the distinct ones).

The product of its digits is 7000, while the sum is 31.

The square root of 145215175 is about 12050.5259221330. The cubic root of 145215175 is about 525.6185302499.

The spelling of 145215175 in words is "one hundred forty-five million, two hundred fifteen thousand, one hundred seventy-five".