145875 has 16 divisors (see below), whose sum is σ = 243360. Its totient is φ = 77600.

The previous prime is 145861. The next prime is 145879. The reversal of 145875 is 578541.

It is not a de Polignac number, because 145875 - 2¹¹ = 143827 is a prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145875.

It is not an unprimeable number, because it can be changed into a prime (145879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181 + ... + 569.

It is an arithmetic number, because the mean of its divisors is an integer number (15210).

2¹⁴⁵⁸⁷⁵ is an apocalyptic number.

145875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145875 is a deficient number, since it is larger than the sum of its proper divisors (97485).

145875 is an equidigital number, since it uses as much as digits as its factorization.

145875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 397 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 145875 is about 381.9358584894. The cubic root of 145875 is about 52.6413424869.

The spelling of 145875 in words is "one hundred forty-five thousand, eight hundred seventy-five".