1000540556 has 6 divisors (see below), whose sum is σ = 1750945980. Its totient is φ = 500270276.

The previous prime is 1000540553. The next prime is 1000540561. The reversal of 1000540556 is 6550450001.

It is not an unprimeable number, because it can be changed into a prime (1000540553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125067566 + ... + 125067573.

It is an arithmetic number, because the mean of its divisors is an integer number (291824330).

Almost surely, 2^1000540556 is an apocalyptic number.

It is an amenable number.

1000540556 is a deficient number, since it is larger than the sum of its proper divisors (750405424).

1000540556 is a wasteful number, since it uses less digits than its factorization.

1000540556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250135143 (or 250135141 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1000540556 is about 31631.3223877852. The cubic root of 1000540556 is about 1000.1801528763.

Adding to 1000540556 its reverse (6550450001), we get a palindrome (7550990557).

The spelling of 1000540556 in words is "one billion, five hundred forty thousand, five hundred fifty-six".