1636150361 has 2 divisors, whose sum is σ = 1636150362. Its totient is φ = 1636150360.

The previous prime is 1636150303. The next prime is 1636150421. The reversal of 1636150361 is 1630516361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1336341136 + 299809225 = 36556^2 + 17315^2 .

It is an emirp because it is prime and its reverse (1630516361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1636150361 - 2¹⁸ = 1635888217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1636150861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 818075180 + 818075181.

It is an arithmetic number, because the mean of its divisors is an integer number (818075181).

Almost surely, 2^1636150361 is an apocalyptic number.

It is an amenable number.

1636150361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1636150361 is an equidigital number, since it uses as much as digits as its factorization.

1636150361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1636150361 is about 40449.3555078446. The cubic root of 1636150361 is about 1178.3502659548.

The spelling of 1636150361 in words is "one billion, six hundred thirty-six million, one hundred fifty thousand, three hundred sixty-one".