1936454197 has 2 divisors, whose sum is σ = 1936454198. Its totient is φ = 1936454196.

The previous prime is 1936454161. The next prime is 1936454227. The reversal of 1936454197 is 7914546391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1475020836 + 461433361 = 38406^2 + 21481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1936454197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1936454197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1936454147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968227098 + 968227099.

It is an arithmetic number, because the mean of its divisors is an integer number (968227099).

Almost surely, 2^1936454197 is an apocalyptic number.

It is an amenable number.

1936454197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936454197 is an equidigital number, since it uses as much as digits as its factorization.

1936454197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 1936454197 is about 44005.1610268614. The cubic root of 1936454197 is about 1246.4333951695.

The spelling of 1936454197 in words is "one billion, nine hundred thirty-six million, four hundred fifty-four thousand, one hundred ninety-seven".