1671543113 has 2 divisors, whose sum is σ = 1671543114. Its totient is φ = 1671543112.

The previous prime is 1671543103. The next prime is 1671543119. The reversal of 1671543113 is 3113451761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1046393104 + 625150009 = 32348^2 + 25003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1671543113 - 2⁸ = 1671542857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1671543113.

It is not a weakly prime, because it can be changed into another prime (1671543119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835771556 + 835771557.

It is an arithmetic number, because the mean of its divisors is an integer number (835771557).

Almost surely, 2^1671543113 is an apocalyptic number.

It is an amenable number.

1671543113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671543113 is an equidigital number, since it uses as much as digits as its factorization.

1671543113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 1671543113 is about 40884.5094504019. The cubic root of 1671543113 is about 1186.7863088543.

Adding to 1671543113 its reverse (3113451761), we get a palindrome (4784994874).

The spelling of 1671543113 in words is "one billion, six hundred seventy-one million, five hundred forty-three thousand, one hundred thirteen".