371440081 has 2 divisors, whose sum is σ = 371440082. Its totient is φ = 371440080.

The previous prime is 371440079. The next prime is 371440093. The reversal of 371440081 is 180044173.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362559681 + 8880400 = 19041^2 + 2980^2 .

It is a cyclic number.

It is not a de Polignac number, because 371440081 - 2¹ = 371440079 is a prime.

It is a super-2 number, since 2×371440081² = 275935467546573122, which contains 22 as substring.

Together with 371440079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (371440001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185720040 + 185720041.

It is an arithmetic number, because the mean of its divisors is an integer number (185720041).

Almost surely, 2^371440081 is an apocalyptic number.

It is an amenable number.

371440081 is a deficient number, since it is larger than the sum of its proper divisors (1).

371440081 is an equidigital number, since it uses as much as digits as its factorization.

371440081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 371440081 is about 19272.7808320439. The cubic root of 371440081 is about 718.8356186248.

The spelling of 371440081 in words is "three hundred seventy-one million, four hundred forty thousand, eighty-one".