368042581 has 2 divisors, whose sum is σ = 368042582. Its totient is φ = 368042580.

The previous prime is 368042579. The next prime is 368042621. The reversal of 368042581 is 185240863.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348382225 + 19660356 = 18665^2 + 4434^2 .

It is a cyclic number.

It is not a de Polignac number, because 368042581 - 2¹ = 368042579 is a prime.

It is a super-2 number, since 2×368042581² = 270910682858283122, which contains 22 as substring.

Together with 368042579, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 368042581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368042561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184021290 + 184021291.

It is an arithmetic number, because the mean of its divisors is an integer number (184021291).

Almost surely, 2^368042581 is an apocalyptic number.

It is an amenable number.

368042581 is a deficient number, since it is larger than the sum of its proper divisors (1).

368042581 is an equidigital number, since it uses as much as digits as its factorization.

368042581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 368042581 is about 19184.4359051811. The cubic root of 368042581 is about 716.6372125867.

The spelling of 368042581 in words is "three hundred sixty-eight million, forty-two thousand, five hundred eighty-one".