1000542 has 16 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 330072.

The previous prime is 1000541. The next prime is 1000547. The reversal of 1000542 is 2450001.

1000542 is a modest number, since divided by 542 gives 10 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192 + ... + 1427.

It is an arithmetic number, because the mean of its divisors is an integer number (126360).

2^1000542 is an apocalyptic number.

1000542 is an abundant number, since it is smaller than the sum of its proper divisors (1021218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000542 is a wasteful number, since it uses less digits than its factorization.

1000542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1000542 is about 1000.2709632894. The cubic root of 1000542 is about 100.0180634036.

Adding to 1000542 its reverse (2450001), we get a palindrome (3450543).

The spelling of 1000542 in words is "one million, five hundred forty-two", and thus it is an aban number.