523145 has 8 divisors (see below), whose sum is σ = 717504. Its totient is φ = 358704.

The previous prime is 523129. The next prime is 523169. The reversal of 523145 is 541325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523145 - 2⁴ = 523129 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7439 + ... + 7508.

It is an arithmetic number, because the mean of its divisors is an integer number (89688).

2⁵²³¹⁴⁵ is an apocalyptic number.

It is an amenable number.

523145 is a deficient number, since it is larger than the sum of its proper divisors (194359).

523145 is a wasteful number, since it uses less digits than its factorization.

523145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14959.

The product of its digits is 600, while the sum is 20.

The square root of 523145 is about 723.2876329649. The cubic root of 523145 is about 80.5763071566.

The spelling of 523145 in words is "five hundred twenty-three thousand, one hundred forty-five".