994819153 has 2 divisors, whose sum is σ = 994819154. Its totient is φ = 994819152.

The previous prime is 994819093. The next prime is 994819183. The reversal of 994819153 is 351918499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986713744 + 8105409 = 31412^2 + 2847^2 .

It is a cyclic number.

It is not a de Polignac number, because 994819153 - 2⁹ = 994818641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 994819097 and 994819106.

It is not a weakly prime, because it can be changed into another prime (994819183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497409576 + 497409577.

It is an arithmetic number, because the mean of its divisors is an integer number (497409577).

Almost surely, 2^994819153 is an apocalyptic number.

It is an amenable number.

994819153 is a deficient number, since it is larger than the sum of its proper divisors (1).

994819153 is an equidigital number, since it uses as much as digits as its factorization.

994819153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 49.

The square root of 994819153 is about 31540.7538432422. The cubic root of 994819153 is about 998.2700600334.

The spelling of 994819153 in words is "nine hundred ninety-four million, eight hundred nineteen thousand, one hundred fifty-three".