38063581 has 2 divisors, whose sum is σ = 38063582. Its totient is φ = 38063580.

The previous prime is 38063569. The next prime is 38063591. The reversal of 38063581 is 18536083.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37822500 + 241081 = 6150^2 + 491^2 .

It is an emirp because it is prime and its reverse (18536083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38063581 - 2⁵ = 38063549 is a prime.

It is a super-2 number, since 2×38063581² = 2897672397087122, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38063521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19031790 + 19031791.

It is an arithmetic number, because the mean of its divisors is an integer number (19031791).

Almost surely, 2^38063581 is an apocalyptic number.

It is an amenable number.

38063581 is a deficient number, since it is larger than the sum of its proper divisors (1).

38063581 is an equidigital number, since it uses as much as digits as its factorization.

38063581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 38063581 is about 6169.5689476656. The cubic root of 38063581 is about 336.3849430048.

The spelling of 38063581 in words is "thirty-eight million, sixty-three thousand, five hundred eighty-one".