361442089 has 2 divisors, whose sum is σ = 361442090. Its totient is φ = 361442088.

The previous prime is 361442087. The next prime is 361442099. The reversal of 361442089 is 980244163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292136464 + 69305625 = 17092^2 + 8325^2 .

It is an emirp because it is prime and its reverse (980244163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361442089 - 2¹ = 361442087 is a prime.

Together with 361442087, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (361442087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180721044 + 180721045.

It is an arithmetic number, because the mean of its divisors is an integer number (180721045).

Almost surely, 2^361442089 is an apocalyptic number.

It is an amenable number.

361442089 is a deficient number, since it is larger than the sum of its proper divisors (1).

361442089 is an equidigital number, since it uses as much as digits as its factorization.

361442089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 361442089 is about 19011.6303614393. The cubic root of 361442089 is about 712.3272762399.

The spelling of 361442089 in words is "three hundred sixty-one million, four hundred forty-two thousand, eighty-nine".