145475 has 18 divisors (see below), whose sum is σ = 205716. Its totient is φ = 101200.

The previous prime is 145471. The next prime is 145477. The reversal of 145475 is 574541.

It is not a de Polignac number, because 145475 - 2² = 145471 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145475.

It is not an unprimeable number, because it can be changed into a prime (145471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6314 + ... + 6336.

2¹⁴⁵⁴⁷⁵ is an apocalyptic number.

145475 is a deficient number, since it is larger than the sum of its proper divisors (60241).

145475 is a wasteful number, since it uses less digits than its factorization.

145475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 39 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 145475 is about 381.4118508909. The cubic root of 145475 is about 52.5931829609.

The spelling of 145475 in words is "one hundred forty-five thousand, four hundred seventy-five".