945523 has 4 divisors (see below), whose sum is σ = 1001160. Its totient is φ = 889888.

The previous prime is 945521. The next prime is 945547. The reversal of 945523 is 325549.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325549 = 7 ⋅46507.

It is a cyclic number.

It is not a de Polignac number, because 945523 - 2¹ = 945521 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 945491 and 945500.

It is not an unprimeable number, because it can be changed into a prime (945521) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27793 + ... + 27826.

It is an arithmetic number, because the mean of its divisors is an integer number (250290).

2⁹⁴⁵⁵²³ is an apocalyptic number.

945523 is a deficient number, since it is larger than the sum of its proper divisors (55637).

945523 is a wasteful number, since it uses less digits than its factorization.

945523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55636.

The product of its digits is 5400, while the sum is 28.

The square root of 945523 is about 972.3800697258. The cubic root of 945523 is about 98.1500893287.

The spelling of 945523 in words is "nine hundred forty-five thousand, five hundred twenty-three".