1065557 has 2 divisors, whose sum is σ = 1065558. Its totient is φ = 1065556.

The previous prime is 1065529. The next prime is 1065569. The reversal of 1065557 is 7555601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758641 + 306916 = 871^2 + 554^2 .

It is an emirp because it is prime and its reverse (7555601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1065557 - 2¹⁰ = 1064533 is a prime.

It is a super-2 number, since 2×1065557² = 2270823440498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532778 + 532779.

It is an arithmetic number, because the mean of its divisors is an integer number (532779).

2^1065557 is an apocalyptic number.

It is an amenable number.

1065557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065557 is an equidigital number, since it uses as much as digits as its factorization.

1065557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 1065557 is about 1032.2582041331. The cubic root of 1065557 is about 102.1391475241.

The spelling of 1065557 in words is "one million, sixty-five thousand, five hundred fifty-seven".