921045 has 8 divisors (see below), whose sum is σ = 1473696. Its totient is φ = 491216.

The previous prime is 921031. The next prime is 921073. The reversal of 921045 is 540129.

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 921045 - 2⁴ = 921029 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 921045.

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 7 ways as a sum of consecutive naturals, for example, 30687 + ... + 30716.

It is an arithmetic number, because the mean of its divisors is an integer number (184212).

2⁹²¹⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

921045 is a deficient number, since it is larger than the sum of its proper divisors (552651).

921045 is a wasteful number, since it uses less digits than its factorization.

921045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61411.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 921045 is about 959.7108939676. The cubic root of 921045 is about 97.2956931563.

The spelling of 921045 in words is "nine hundred twenty-one thousand, forty-five".