981375299 has 2 divisors, whose sum is σ = 981375300. Its totient is φ = 981375298.

The previous prime is 981375271. The next prime is 981375301. The reversal of 981375299 is 992573189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 981375299 - 2²⁴ = 964598083 is a prime.

Together with 981375301, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 981375299.

It is not a weakly prime, because it can be changed into another prime (981374299) 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, 490687649 + 490687650.

It is an arithmetic number, because the mean of its divisors is an integer number (490687650).

Almost surely, 2^981375299 is an apocalyptic number.

981375299 is a deficient number, since it is larger than the sum of its proper divisors (1).

981375299 is an equidigital number, since it uses as much as digits as its factorization.

981375299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 53.

The square root of 981375299 is about 31326.9101412827. The cubic root of 981375299 is about 993.7528203498.

The spelling of 981375299 in words is "nine hundred eighty-one million, three hundred seventy-five thousand, two hundred ninety-nine".