3145523 has 4 divisors (see below), whose sum is σ = 3149448. Its totient is φ = 3141600.

The previous prime is 3145511. The next prime is 3145529. The reversal of 3145523 is 3255413.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3145523 - 2¹⁶ = 3079987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3145529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278 + ... + 2523.

It is an arithmetic number, because the mean of its divisors is an integer number (787362).

Almost surely, 2^3145523 is an apocalyptic number.

3145523 is a deficient number, since it is larger than the sum of its proper divisors (3925).

3145523 is a wasteful number, since it uses less digits than its factorization.

3145523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924.

The product of its digits is 1800, while the sum is 23.

The square root of 3145523 is about 1773.5622346002. The cubic root of 3145523 is about 146.5202401107.

It can be divided in two parts, 31 and 45523, that added together give a palindrome (45554).

The spelling of 3145523 in words is "three million, one hundred forty-five thousand, five hundred twenty-three".