994125569 has 2 divisors, whose sum is σ = 994125570. Its totient is φ = 994125568.

The previous prime is 994125553. The next prime is 994125571. The reversal of 994125569 is 965521499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 888755344 + 105370225 = 29812^2 + 10265^2 .

It is a cyclic number.

It is not a de Polignac number, because 994125569 - 2⁴ = 994125553 is a prime.

It is a super-2 number, since 2×994125569² = 1976571293879147522, which contains 22 as substring.

Together with 994125571, it forms a pair of twin primes.

It is a Chen prime.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497062784 + 497062785.

It is an arithmetic number, because the mean of its divisors is an integer number (497062785).

Almost surely, 2^994125569 is an apocalyptic number.

It is an amenable number.

994125569 is a deficient number, since it is larger than the sum of its proper divisors (1).

994125569 is an equidigital number, since it uses as much as digits as its factorization.

994125569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 50.

The square root of 994125569 is about 31529.7568813970. The cubic root of 994125569 is about 998.0380094439.

The spelling of 994125569 in words is "nine hundred ninety-four million, one hundred twenty-five thousand, five hundred sixty-nine".