900480081 has 4 divisors (see below), whose sum is σ = 1200640112. Its totient is φ = 600320052.

The previous prime is 900480079. The next prime is 900480083. The reversal of 900480081 is 180084009.

It is a happy number.

900480081 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (900480079) and next prime (900480083).

It is not a de Polignac number, because 900480081 - 2¹ = 900480079 is a prime.

It is a super-2 number, since 2×900480081² = 1621728752555533122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900480083) 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, 150080011 + ... + 150080016.

It is an arithmetic number, because the mean of its divisors is an integer number (300160028).

Almost surely, 2^900480081 is an apocalyptic number.

It is an amenable number.

900480081 is a deficient number, since it is larger than the sum of its proper divisors (300160031).

900480081 is a wasteful number, since it uses less digits than its factorization.

900480081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300160030.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 900480081 is about 30008.0002832578. Note that the first 3 decimals coincide. The cubic root of 900480081 is about 965.6610256121.

The spelling of 900480081 in words is "nine hundred million, four hundred eighty thousand, eighty-one".