1675561 has 2 divisors, whose sum is σ = 1675562. Its totient is φ = 1675560.

The previous prime is 1675507. The next prime is 1675567. The reversal of 1675561 is 1655761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1651225 + 24336 = 1285^2 + 156^2 .

It is a cyclic number.

It is not a de Polignac number, because 1675561 - 2⁹ = 1675049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1675567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837780 + 837781.

It is an arithmetic number, because the mean of its divisors is an integer number (837781).

2^1675561 is an apocalyptic number.

It is an amenable number.

1675561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1675561 is an equidigital number, since it uses as much as digits as its factorization.

1675561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 31.

The square root of 1675561 is about 1294.4346256185. The cubic root of 1675561 is about 118.7736440454.

Adding to 1675561 its product of digits (6300), we get a palindrome (1681861).

The spelling of 1675561 in words is "one million, six hundred seventy-five thousand, five hundred sixty-one".