1042557 has 4 divisors (see below), whose sum is σ = 1390080. Its totient is φ = 695036.

The previous prime is 1042529. The next prime is 1042571. The reversal of 1042557 is 7552401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7552401 = 3 ⋅2517467.

It is a cyclic number.

It is not a de Polignac number, because 1042557 - 2¹⁶ = 977021 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173757 + ... + 173762.

It is an arithmetic number, because the mean of its divisors is an integer number (347520).

2^1042557 is an apocalyptic number.

It is an amenable number.

1042557 is a deficient number, since it is larger than the sum of its proper divisors (347523).

1042557 is an equidigital number, since it uses as much as digits as its factorization.

1042557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347522.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 1042557 is about 1021.0568054717. The cubic root of 1042557 is about 101.3989060333.

Adding to 1042557 its reverse (7552401), we get a palindrome (8594958).

The spelling of 1042557 in words is "one million, forty-two thousand, five hundred fifty-seven".