1674538081 has 2 divisors, whose sum is σ = 1674538082. Its totient is φ = 1674538080.

The previous prime is 1674538079. The next prime is 1674538087. The reversal of 1674538081 is 1808354761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1298953681 + 375584400 = 36041^2 + 19380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1674538081 - 2¹ = 1674538079 is a prime.

It is a super-2 number, since 2×1674538081² = 5608155569438325122, which contains 22 as substring.

Together with 1674538079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1674538087) 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, 837269040 + 837269041.

It is an arithmetic number, because the mean of its divisors is an integer number (837269041).

Almost surely, 2^1674538081 is an apocalyptic number.

It is an amenable number.

1674538081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1674538081 is an equidigital number, since it uses as much as digits as its factorization.

1674538081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 1674538081 is about 40921.1202314893. The cubic root of 1674538081 is about 1187.4946894832.

The spelling of 1674538081 in words is "one billion, six hundred seventy-four million, five hundred thirty-eight thousand, eighty-one".