1162642543 has 2 divisors, whose sum is σ = 1162642544. Its totient is φ = 1162642542.

The previous prime is 1162642531. The next prime is 1162642549. The reversal of 1162642543 is 3452462611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1162642543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1162642499 and 1162642508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1162642549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581321271 + 581321272.

It is an arithmetic number, because the mean of its divisors is an integer number (581321272).

Almost surely, 2^1162642543 is an apocalyptic number.

1162642543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162642543 is an equidigital number, since it uses as much as digits as its factorization.

1162642543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 1162642543 is about 34097.5445303617. The cubic root of 1162642543 is about 1051.5148333049.

The spelling of 1162642543 in words is "one billion, one hundred sixty-two million, six hundred forty-two thousand, five hundred forty-three".