1043557 has 2 divisors, whose sum is σ = 1043558. Its totient is φ = 1043556.

The previous prime is 1043543. The next prime is 1043587. The reversal of 1043557 is 7553401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 641601 + 401956 = 801^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043557 - 2¹⁹ = 519269 is a prime.

It is a super-2 number, since 2×1043557² = 2178022424498, which contains 22 as substring.

It is an Ulam number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043587) 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, 521778 + 521779.

It is an arithmetic number, because the mean of its divisors is an integer number (521779).

2^1043557 is an apocalyptic number.

It is an amenable number.

1043557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043557 is an equidigital number, since it uses as much as digits as its factorization.

1043557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1043557 is about 1021.5463768229. The cubic root of 1043557 is about 101.4313156133.

Adding to 1043557 its reverse (7553401), we get a palindrome (8596958).

It can be divided in two parts, 1043 and 557, that added together give a square (1600 = 40²).

The spelling of 1043557 in words is "one million, forty-three thousand, five hundred fifty-seven".