1073557 has 4 divisors (see below), whose sum is σ = 1130080. Its totient is φ = 1017036.

The previous prime is 1073537. The next prime is 1073563. The reversal of 1073557 is 7553701.

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: 7553701 = 631 ⋅11971.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073557 is a prime.

It is an Ulam number.

It is a Duffinian number.

1073557 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073507) 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, 28233 + ... + 28270.

It is an arithmetic number, because the mean of its divisors is an integer number (282520).

2^1073557 is an apocalyptic number.

It is an amenable number.

1073557 is a deficient number, since it is larger than the sum of its proper divisors (56523).

1073557 is an equidigital number, since it uses as much as digits as its factorization.

1073557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56522.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 1073557 is about 1036.1259575940. The cubic root of 1073557 is about 102.3941242661.

The spelling of 1073557 in words is "one million, seventy-three thousand, five hundred fifty-seven".