371006981 has 2 divisors, whose sum is σ = 371006982. Its totient is φ = 371006980.

The previous prime is 371006971. The next prime is 371007019. The reversal of 371006981 is 189600173.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258116356 + 112890625 = 16066^2 + 10625^2 .

It is a cyclic number.

It is not a de Polignac number, because 371006981 - 2²⁶ = 303898117 is a prime.

It is a super-2 number, since 2×371006981² = 275292359901468722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (371006971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185503490 + 185503491.

It is an arithmetic number, because the mean of its divisors is an integer number (185503491).

Almost surely, 2^371006981 is an apocalyptic number.

It is an amenable number.

371006981 is a deficient number, since it is larger than the sum of its proper divisors (1).

371006981 is an equidigital number, since it uses as much as digits as its factorization.

371006981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 371006981 is about 19261.5415011364. The cubic root of 371006981 is about 718.5561219632.

The spelling of 371006981 in words is "three hundred seventy-one million, six thousand, nine hundred eighty-one".