981914273 has 2 divisors, whose sum is σ = 981914274. Its totient is φ = 981914272.

The previous prime is 981914249. The next prime is 981914293. The reversal of 981914273 is 372419189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 848673424 + 133240849 = 29132^2 + 11543^2 .

It is a cyclic number.

It is not a de Polignac number, because 981914273 - 2²⁸ = 713478817 is a prime.

It is a super-2 number, since 2×981914273² = 1928311279042237058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (981914233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490957136 + 490957137.

It is an arithmetic number, because the mean of its divisors is an integer number (490957137).

Almost surely, 2^981914273 is an apocalyptic number.

It is an amenable number.

981914273 is a deficient number, since it is larger than the sum of its proper divisors (1).

981914273 is an equidigital number, since it uses as much as digits as its factorization.

981914273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 981914273 is about 31335.5113728817. The cubic root of 981914273 is about 993.9347109785.

The spelling of 981914273 in words is "nine hundred eighty-one million, nine hundred fourteen thousand, two hundred seventy-three".