1056538 has 12 divisors (see below), whose sum is σ = 1843722. Its totient is φ = 452760.

The previous prime is 1056521. The next prime is 1056541. The reversal of 1056538 is 8356501.

It can be written as a sum of positive squares in only one way, i.e., 974169 + 82369 = 987^2 + 287^2 .

It is a super-2 number, since 2×1056538² = 2232545090888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5293 + ... + 5488.

2^1056538 is an apocalyptic number.

1056538 is a deficient number, since it is larger than the sum of its proper divisors (787184).

1056538 is a wasteful number, since it uses less digits than its factorization.

1056538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10797 (or 10790 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1056538 is about 1027.8803432307. The cubic root of 1056538 is about 101.8501580439.

The spelling of 1056538 in words is "one million, fifty-six thousand, five hundred thirty-eight".