994981441 has 2 divisors, whose sum is σ = 994981442. Its totient is φ = 994981440.

The previous prime is 994981439. The next prime is 994981447. The reversal of 994981441 is 144189499.

994981441 = 22304² + 22305².

994981441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497513025 + 497468416 = 22305^2 + 22304^2 .

It is a cyclic number.

It is not a de Polignac number, because 994981441 - 2¹ = 994981439 is a prime.

Together with 994981439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (994981447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497490720 + 497490721.

It is an arithmetic number, because the mean of its divisors is an integer number (497490721).

Almost surely, 2^994981441 is an apocalyptic number.

994981441 is the 22305-th centered square number.

It is an amenable number.

994981441 is a deficient number, since it is larger than the sum of its proper divisors (1).

994981441 is an equidigital number, since it uses as much as digits as its factorization.

994981441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 49.

The square root of 994981441 is about 31543.3264098763. The cubic root of 994981441 is about 998.3243407343.

The spelling of 994981441 in words is "nine hundred ninety-four million, nine hundred eighty-one thousand, four hundred forty-one".