981454339 has 2 divisors, whose sum is σ = 981454340. Its totient is φ = 981454338.

The previous prime is 981454303. The next prime is 981454343. The reversal of 981454339 is 933454189.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (933454189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 981454339 - 2⁷ = 981454211 is a prime.

It is not a weakly prime, because it can be changed into another prime (981454379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490727169 + 490727170.

It is an arithmetic number, because the mean of its divisors is an integer number (490727170).

Almost surely, 2^981454339 is an apocalyptic number.

981454339 is a deficient number, since it is larger than the sum of its proper divisors (1).

981454339 is an equidigital number, since it uses as much as digits as its factorization.

981454339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 981454339 is about 31328.1716510875. The cubic root of 981454339 is about 993.7794985956.

The spelling of 981454339 in words is "nine hundred eighty-one million, four hundred fifty-four thousand, three hundred thirty-nine".