507145 has 4 divisors (see below), whose sum is σ = 608580. Its totient is φ = 405712.

The previous prime is 507139. The next prime is 507149. The reversal of 507145 is 541705.

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

It can be written as a sum of positive squares in 2 ways, for example, as 299209 + 207936 = 547^2 + 456^2 .

It is a cyclic number.

It is not a de Polignac number, because 507145 - 2³ = 507137 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (507149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50710 + ... + 50719.

It is an arithmetic number, because the mean of its divisors is an integer number (152145).

2⁵⁰⁷¹⁴⁵ is an apocalyptic number.

It is an amenable number.

507145 is a deficient number, since it is larger than the sum of its proper divisors (101435).

507145 is a wasteful number, since it uses less digits than its factorization.

507145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101434.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 507145 is about 712.1411376967. The cubic root of 507145 is about 79.7463319232.

The spelling of 507145 in words is "five hundred seven thousand, one hundred forty-five".