921265 has 8 divisors (see below), whose sum is σ = 1153728. Its totient is φ = 704880.

The previous prime is 921259. The next prime is 921287. The reversal of 921265 is 562129.

921265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 921265 - 2³ = 921257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3891 + ... + 4120.

It is an arithmetic number, because the mean of its divisors is an integer number (144216).

2⁹²¹²⁶⁵ is an apocalyptic number.

It is an amenable number.

921265 is a deficient number, since it is larger than the sum of its proper divisors (232463).

921265 is a wasteful number, since it uses less digits than its factorization.

921265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039.

The product of its digits is 1080, while the sum is 25.

The square root of 921265 is about 959.8255049747. The cubic root of 921265 is about 97.3034391942.

The spelling of 921265 in words is "nine hundred twenty-one thousand, two hundred sixty-five".