1936454161 has 2 divisors, whose sum is σ = 1936454162. Its totient is φ = 1936454160.

The previous prime is 1936454147. The next prime is 1936454197. The reversal of 1936454161 is 1614546391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1590494161 + 345960000 = 39881^2 + 18600^2 .

It is an emirp because it is prime and its reverse (1614546391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1936454161 - 2⁵ = 1936454129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1936454101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968227080 + 968227081.

It is an arithmetic number, because the mean of its divisors is an integer number (968227081).

Almost surely, 2^1936454161 is an apocalyptic number.

It is an amenable number.

1936454161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936454161 is an equidigital number, since it uses as much as digits as its factorization.

1936454161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 1936454161 is about 44005.1606178185. The cubic root of 1936454161 is about 1246.4333874455.

The spelling of 1936454161 in words is "one billion, nine hundred thirty-six million, four hundred fifty-four thousand, one hundred sixty-one".