921241 has 2 divisors, whose sum is σ = 921242.
Its totient is φ = 921240.
The previous prime is 921233. The next prime is 921257. The reversal of 921241 is 142129.
921241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 912025 + 9216 = 955^2 + 96^2
It is a cyclic number.
It is not a de Polignac number, because 921241 - 23 = 921233 is a prime.
It is not a weakly prime, because it can be changed into another prime (921841) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460620 + 460621.
It is an arithmetic number, because the mean of its divisors is an integer number (460621).
2921241 is an apocalyptic number.
It is an amenable number.
921241 is a deficient number, since it is larger than the sum of its proper divisors (1).
921241 is an equidigital number, since it uses as much as digits as its factorization.
921241 is an evil number, because the sum of its binary digits is even.
The product of its digits is 144, while the sum is 19.
The square root of 921241 is about 959.8130026208.
The cubic root of 921241 is about 97.3025942318.
The spelling of 921241 in words is "nine hundred twenty-one thousand, two hundred forty-one".