38162561 has 2 divisors, whose sum is σ = 38162562. Its totient is φ = 38162560.

The previous prime is 38162489. The next prime is 38162587. The reversal of 38162561 is 16526183.

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., 34810000 + 3352561 = 5900^2 + 1831^2 .

It is an emirp because it is prime and its reverse (16526183) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38162561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38122561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19081280 + 19081281.

It is an arithmetic number, because the mean of its divisors is an integer number (19081281).

Almost surely, 2^38162561 is an apocalyptic number.

It is an amenable number.

38162561 is a deficient number, since it is larger than the sum of its proper divisors (1).

38162561 is an equidigital number, since it uses as much as digits as its factorization.

38162561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 38162561 is about 6177.5853697055. The cubic root of 38162561 is about 336.6762675213.

The spelling of 38162561 in words is "thirty-eight million, one hundred sixty-two thousand, five hundred sixty-one".