990000541 has 4 divisors (see below), whose sum is σ = 990465084. Its totient is φ = 989536000.

The previous prime is 990000503. The next prime is 990000547. The reversal of 990000541 is 145000099.

990000541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 978125625 + 11874916 = 31275^2 + 3446^2 .

It is a cyclic number.

It is not a de Polignac number, because 990000541 - 2⁹ = 990000029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990000547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229060 + ... + 233341.

It is an arithmetic number, because the mean of its divisors is an integer number (247616271).

Almost surely, 2^990000541 is an apocalyptic number.

It is an amenable number.

990000541 is a deficient number, since it is larger than the sum of its proper divisors (464543).

990000541 is a wasteful number, since it uses less digits than its factorization.

990000541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464542.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 990000541 is about 31464.2740421577. The cubic root of 990000541 is about 996.6556749582.

The spelling of 990000541 in words is "nine hundred ninety million, five hundred forty-one", and thus it is an aban number.