1056539 has 8 divisors (see below), whose sum is σ = 1162560. Its totient is φ = 952200.

The previous prime is 1056521. The next prime is 1056541. The reversal of 1056539 is 9356501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056539 - 2²⁰ = 7963 is a prime.

It is a super-2 number, since 2×1056539² = 2232549317042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (145320).

2^1056539 is an apocalyptic number.

1056539 is a deficient number, since it is larger than the sum of its proper divisors (106021).

1056539 is a wasteful number, since it uses less digits than its factorization.

1056539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 1056539 is about 1027.8808296685. The cubic root of 1056539 is about 101.8501901772.

The spelling of 1056539 in words is "one million, fifty-six thousand, five hundred thirty-nine".