1057537 has 4 divisors (see below), whose sum is σ = 1138900. Its totient is φ = 976176.

The previous prime is 1057531. The next prime is 1057541. The reversal of 1057537 is 7357501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7357501 = 409 ⋅17989.

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 998001 = 244^2 + 999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1057537 - 2¹¹ = 1055489 is a prime.

It is a super-2 number, since 2×1057537² = 2236769012738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40662 + ... + 40687.

It is an arithmetic number, because the mean of its divisors is an integer number (284725).

2^1057537 is an apocalyptic number.

It is an amenable number.

1057537 is a deficient number, since it is larger than the sum of its proper divisors (81363).

1057537 is an equidigital number, since it uses as much as digits as its factorization.

1057537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81362.

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

The square root of 1057537 is about 1028.3661799184. The cubic root of 1057537 is about 101.8822490984.

The spelling of 1057537 in words is "one million, fifty-seven thousand, five hundred thirty-seven".