1560121 has 2 divisors, whose sum is σ = 1560122. Its totient is φ = 1560120.

The previous prime is 1560077. The next prime is 1560127. The reversal of 1560121 is 1210651.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1155625 + 404496 = 1075^2 + 636^2 .

It is a cyclic number.

It is not a de Polignac number, because 1560121 - 2⁹ = 1559609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1560095 and 1560104.

It is not a weakly prime, because it can be changed into another prime (1560127) 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, 780060 + 780061.

It is an arithmetic number, because the mean of its divisors is an integer number (780061).

2^1560121 is an apocalyptic number.

It is an amenable number.

1560121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1560121 is an equidigital number, since it uses as much as digits as its factorization.

1560121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1560121 is about 1249.0480375070. The cubic root of 1560121 is about 115.9807984468.

Adding to 1560121 its reverse (1210651), we get a palindrome (2770772).

It can be divided in two parts, 1560 and 121, that added together give a square (1681 = 41²).

The spelling of 1560121 in words is "one million, five hundred sixty thousand, one hundred twenty-one".