981013459 has 2 divisors, whose sum is σ = 981013460. Its totient is φ = 981013458.

The previous prime is 981013417. The next prime is 981013463. The reversal of 981013459 is 954310189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 981013459 - 2⁷ = 981013331 is a prime.

It is not a weakly prime, because it can be changed into another prime (981013559) 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, 490506729 + 490506730.

It is an arithmetic number, because the mean of its divisors is an integer number (490506730).

Almost surely, 2^981013459 is an apocalyptic number.

981013459 is a deficient number, since it is larger than the sum of its proper divisors (1).

981013459 is an equidigital number, since it uses as much as digits as its factorization.

981013459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 981013459 is about 31321.1343823943. The cubic root of 981013459 is about 993.6306707763.

The spelling of 981013459 in words is "nine hundred eighty-one million, thirteen thousand, four hundred fifty-nine".