900160009 has 4 divisors (see below), whose sum is σ = 1028754304. Its totient is φ = 771565716.

The previous prime is 900159943. The next prime is 900160021. The reversal of 900160009 is 900061009.

900160009 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 a cyclic number.

It is not a de Polignac number, because 900160009 - 2⁹ = 900159497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900160069) 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, 64297137 + ... + 64297150.

It is an arithmetic number, because the mean of its divisors is an integer number (257188576).

Almost surely, 2^900160009 is an apocalyptic number.

It is an amenable number.

900160009 is a deficient number, since it is larger than the sum of its proper divisors (128594295).

900160009 is a wasteful number, since it uses less digits than its factorization.

900160009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128594294.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 900160009 is about 30002.6666981454. Note that the first 4 decimals coincide. The cubic root of 900160009 is about 965.5465986192.

The spelling of 900160009 in words is "nine hundred million, one hundred sixty thousand, nine".