38540561 has 2 divisors, whose sum is σ = 38540562. Its totient is φ = 38540560.

The previous prime is 38540549. The next prime is 38540573. The reversal of 38540561 is 16504583.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (38540549) and next prime (38540573).

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 17380561 = 4600^2 + 4169^2 .

It is a cyclic number.

It is not a de Polignac number, because 38540561 - 2⁶ = 38540497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38540521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19270280 + 19270281.

It is an arithmetic number, because the mean of its divisors is an integer number (19270281).

Almost surely, 2^38540561 is an apocalyptic number.

It is an amenable number.

38540561 is a deficient number, since it is larger than the sum of its proper divisors (1).

38540561 is an equidigital number, since it uses as much as digits as its factorization.

38540561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 38540561 is about 6208.1044611057. The cubic root of 38540561 is about 337.7842097987.

The spelling of 38540561 in words is "thirty-eight million, five hundred forty thousand, five hundred sixty-one".