921160 has 16 divisors (see below), whose sum is σ = 2072700. Its totient is φ = 368448.

The previous prime is 921157. The next prime is 921169. The reversal of 921160 is 61129.

It can be written as a sum of positive squares in 2 ways, for example, as 894916 + 26244 = 946^2 + 162^2 .

It is not an unprimeable number, because it can be changed into a prime (921169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11475 + ... + 11554.

2⁹²¹¹⁶⁰ is an apocalyptic number.

It is an amenable number.

921160 is an abundant number, since it is smaller than the sum of its proper divisors (1151540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

921160 is a wasteful number, since it uses less digits than its factorization.

921160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23040 (or 23036 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 921160 is about 959.7708059740. The cubic root of 921160 is about 97.2997423754.

Adding to 921160 its reverse (61129), we get a palindrome (982289).

It can be divided in two parts, 921 and 160, that added together give a triangular number (1081 = T₄₆).

The spelling of 921160 in words is "nine hundred twenty-one thousand, one hundred sixty".