371840081 has 2 divisors, whose sum is σ = 371840082. Its totient is φ = 371840080.

The previous prime is 371840041. The next prime is 371840113. The reversal of 371840081 is 180048173.

It is an a-pointer prime, because the next prime (371840113) can be obtained adding 371840081 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357815056 + 14025025 = 18916^2 + 3745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-371840081 is a prime.

It is a super-2 number, since 2×371840081² = 276530091676173122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (371840041) 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, 185920040 + 185920041.

It is an arithmetic number, because the mean of its divisors is an integer number (185920041).

Almost surely, 2^371840081 is an apocalyptic number.

It is an amenable number.

371840081 is a deficient number, since it is larger than the sum of its proper divisors (1).

371840081 is an equidigital number, since it uses as much as digits as its factorization.

371840081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 371840081 is about 19283.1553693891. The cubic root of 371840081 is about 719.0935616144.

The spelling of 371840081 in words is "three hundred seventy-one million, eight hundred forty thousand, eighty-one".