981036361 has 2 divisors, whose sum is σ = 981036362. Its totient is φ = 981036360.

The previous prime is 981036349. The next prime is 981036401. The reversal of 981036361 is 163630189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 621554761 + 359481600 = 24931^2 + 18960^2 .

It is an emirp because it is prime and its reverse (163630189) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981036361 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 981036361.

It is not a weakly prime, because it can be changed into another prime (981036341) 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, 490518180 + 490518181.

It is an arithmetic number, because the mean of its divisors is an integer number (490518181).

Almost surely, 2^981036361 is an apocalyptic number.

It is an amenable number.

981036361 is a deficient number, since it is larger than the sum of its proper divisors (1).

981036361 is an equidigital number, since it uses as much as digits as its factorization.

981036361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 981036361 is about 31321.4999800457. The cubic root of 981036361 is about 993.6384029001.

The spelling of 981036361 in words is "nine hundred eighty-one million, thirty-six thousand, three hundred sixty-one".