945109 has 8 divisors (see below), whose sum is σ = 1039680. Its totient is φ = 852000.

The previous prime is 945103. The next prime is 945143. The reversal of 945109 is 901549.

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 945109 - 2¹³ = 936917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945103) 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 7 ways as a sum of consecutive naturals, for example, 1377 + ... + 1945.

It is an arithmetic number, because the mean of its divisors is an integer number (129960).

2⁹⁴⁵¹⁰⁹ is an apocalyptic number.

It is an amenable number.

945109 is a deficient number, since it is larger than the sum of its proper divisors (94571).

945109 is a wasteful number, since it uses less digits than its factorization.

945109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 945109 is about 972.1671666951. The cubic root of 945109 is about 98.1357621366.

Adding to 945109 its product of nonzero digits (1620), we get a square (946729 = 973²).

The spelling of 945109 in words is "nine hundred forty-five thousand, one hundred nine".