1048557 has 4 divisors (see below), whose sum is σ = 1398080. Its totient is φ = 699036.

The previous prime is 1048549. The next prime is 1048559. The reversal of 1048557 is 7558401.

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: 7558401 = 3 ⋅2519467.

It is not a de Polignac number, because 1048557 - 2³ = 1048549 is a prime.

It is a D-number.

It is a Duffinian number.

1048557 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048559) 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, 174757 + ... + 174762.

It is an arithmetic number, because the mean of its divisors is an integer number (349520).

2^1048557 is an apocalyptic number.

It is an amenable number.

1048557 is a deficient number, since it is larger than the sum of its proper divisors (349523).

1048557 is an equidigital number, since it uses as much as digits as its factorization.

1048557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349522.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 1048557 is about 1023.9907226142. The cubic root of 1048557 is about 101.5930537029.

The spelling of 1048557 in words is "one million, forty-eight thousand, five hundred fifty-seven".