38181049 has 2 divisors, whose sum is σ = 38181050. Its totient is φ = 38181048.

The previous prime is 38181047. The next prime is 38181071. The reversal of 38181049 is 94018183.

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., 29811600 + 8369449 = 5460^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 38181049 - 2¹ = 38181047 is a prime.

Together with 38181047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (38181047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19090524 + 19090525.

It is an arithmetic number, because the mean of its divisors is an integer number (19090525).

Almost surely, 2^38181049 is an apocalyptic number.

It is an amenable number.

38181049 is a deficient number, since it is larger than the sum of its proper divisors (1).

38181049 is an equidigital number, since it uses as much as digits as its factorization.

38181049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 38181049 is about 6179.0815660582. The cubic root of 38181049 is about 336.7306267832.

The spelling of 38181049 in words is "thirty-eight million, one hundred eighty-one thousand, forty-nine".