1960121 has 2 divisors, whose sum is σ = 1960122. Its totient is φ = 1960120.

The previous prime is 1960111. The next prime is 1960141. The reversal of 1960121 is 1210691.

It is an a-pointer prime, because the next prime (1960141) can be obtained adding 1960121 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 121 = 1400^2 + 11^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1960121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1960093 and 1960102.

It is not a weakly prime, because it can be changed into another prime (1960111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980060 + 980061.

It is an arithmetic number, because the mean of its divisors is an integer number (980061).

2^1960121 is an apocalyptic number.

It is an amenable number.

1960121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1960121 is an equidigital number, since it uses as much as digits as its factorization.

1960121 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 20.

The square root of 1960121 is about 1400.0432136188. The cubic root of 1960121 is about 125.1490701540.

The spelling of 1960121 in words is "one million, nine hundred sixty thousand, one hundred twenty-one".