1020961 has 2 divisors, whose sum is σ = 1020962. Its totient is φ = 1020960.

The previous prime is 1020959. The next prime is 1020967. The reversal of 1020961 is 1690201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844561 + 176400 = 919^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020961 - 2¹ = 1020959 is a prime.

It is a super-2 number, since 2×1020961² = 2084722727042, which contains 22 as substring.

Together with 1020959, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (1020967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510480 + 510481.

It is an arithmetic number, because the mean of its divisors is an integer number (510481).

2^1020961 is an apocalyptic number.

It is an amenable number.

1020961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020961 is an equidigital number, since it uses as much as digits as its factorization.

1020961 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1020961 is about 1010.4261477218. The cubic root of 1020961 is about 100.6938742495.

The spelling of 1020961 in words is "one million, twenty thousand, nine hundred sixty-one".