945745 has 4 divisors (see below), whose sum is σ = 1134900. Its totient is φ = 756592.

The previous prime is 945739. The next prime is 945767. The reversal of 945745 is 547549.

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 369664 + 576081 = 608^2 + 759^2 .

It is a cyclic number.

It is not a de Polignac number, because 945745 - 2⁹ = 945233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 945745.

It is an unprimeable number.

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, 94570 + ... + 94579.

It is an arithmetic number, because the mean of its divisors is an integer number (283725).

2⁹⁴⁵⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

945745 is a deficient number, since it is larger than the sum of its proper divisors (189155).

945745 is a wasteful number, since it uses less digits than its factorization.

945745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189154.

The product of its digits is 25200, while the sum is 34.

The square root of 945745 is about 972.4942159211. The cubic root of 945745 is about 98.1577703034.

It can be divided in two parts, 9 and 45745, that added together give a palindrome (45754).

The spelling of 945745 in words is "nine hundred forty-five thousand, seven hundred forty-five".