1873274281 has 2 divisors, whose sum is σ = 1873274282. Its totient is φ = 1873274280.

The previous prime is 1873274279. The next prime is 1873274341. The reversal of 1873274281 is 1824723781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1739640681 + 133633600 = 41709^2 + 11560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1873274281 - 2¹ = 1873274279 is a prime.

It is a super-2 number, since 2×1873274281² = 7018313063712133922, which contains 22 as substring.

Together with 1873274279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1873244281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936637140 + 936637141.

It is an arithmetic number, because the mean of its divisors is an integer number (936637141).

Almost surely, 2^1873274281 is an apocalyptic number.

It is an amenable number.

1873274281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1873274281 is an equidigital number, since it uses as much as digits as its factorization.

1873274281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 43.

The square root of 1873274281 is about 43281.3387154325. The cubic root of 1873274281 is about 1232.7276109060.

The spelling of 1873274281 in words is "one billion, eight hundred seventy-three million, two hundred seventy-four thousand, two hundred eighty-one".