900994123 has 2 divisors, whose sum is σ = 900994124. Its totient is φ = 900994122.

The previous prime is 900994121. The next prime is 900994153. The reversal of 900994123 is 321499009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 900994123 - 2¹ = 900994121 is a prime.

Together with 900994121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (900994121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450497061 + 450497062.

It is an arithmetic number, because the mean of its divisors is an integer number (450497062).

Almost surely, 2^900994123 is an apocalyptic number.

900994123 is a deficient number, since it is larger than the sum of its proper divisors (1).

900994123 is an equidigital number, since it uses as much as digits as its factorization.

900994123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 900994123 is about 30016.5641438190. The cubic root of 900994123 is about 965.8447409102.

The spelling of 900994123 in words is "nine hundred million, nine hundred ninety-four thousand, one hundred twenty-three".