921252 has 12 divisors (see below), whose sum is σ = 2149616. Its totient is φ = 307080.

The previous prime is 921241. The next prime is 921257. The reversal of 921252 is 252129.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 921252.

It is not an unprimeable number, because it can be changed into a prime (921257) by changing a digit.

921252 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38374 + ... + 38397.

2⁹²¹²⁵² is an apocalyptic number.

It is an amenable number.

921252 is an abundant number, since it is smaller than the sum of its proper divisors (1228364).

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

921252 is a wasteful number, since it uses less digits than its factorization.

921252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76778 (or 76776 counting only the distinct ones).

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

The square root of 921252 is about 959.8187328866. The cubic root of 921252 is about 97.3029815081.

The spelling of 921252 in words is "nine hundred twenty-one thousand, two hundred fifty-two".