900214009 has 2 divisors, whose sum is σ = 900214010. Its totient is φ = 900214008.

The previous prime is 900213989. The next prime is 900214013. The reversal of 900214009 is 900412009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651678784 + 248535225 = 25528^2 + 15765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900214009 is a prime.

It is not a weakly prime, because it can be changed into another prime (900214309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450107004 + 450107005.

It is an arithmetic number, because the mean of its divisors is an integer number (450107005).

Almost surely, 2^900214009 is an apocalyptic number.

It is an amenable number.

900214009 is a deficient number, since it is larger than the sum of its proper divisors (1).

900214009 is an equidigital number, since it uses as much as digits as its factorization.

900214009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 900214009 is about 30003.5666046555. The cubic root of 900214009 is about 965.5659057324.

The spelling of 900214009 in words is "nine hundred million, two hundred fourteen thousand, nine".