994129547 has 2 divisors, whose sum is σ = 994129548. Its totient is φ = 994129546.

The previous prime is 994129481. The next prime is 994129559. The reversal of 994129547 is 745921499.

994129547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 994129547 - 2¹⁰ = 994128523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 994129495 and 994129504.

It is not a weakly prime, because it can be changed into another prime (994129847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497064773 + 497064774.

It is an arithmetic number, because the mean of its divisors is an integer number (497064774).

Almost surely, 2^994129547 is an apocalyptic number.

994129547 is a deficient number, since it is larger than the sum of its proper divisors (1).

994129547 is an equidigital number, since it uses as much as digits as its factorization.

994129547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 50.

The square root of 994129547 is about 31529.8199645986. The cubic root of 994129547 is about 998.0393406607.

The spelling of 994129547 in words is "nine hundred ninety-four million, one hundred twenty-nine thousand, five hundred forty-seven".