543161636 has 12 divisors (see below), whose sum is σ = 950718300. Its totient is φ = 271527840.

The previous prime is 543161623. The next prime is 543161651. The reversal of 543161636 is 636161345.

It can be written as a sum of positive squares in 2 ways, for example, as 314849536 + 228312100 = 17744^2 + 15110^2 .

It is a junction number, because it is equal to n+sod(n) for n = 543161596 and 543161605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18026 + ... + 37566.

It is an arithmetic number, because the mean of its divisors is an integer number (79226525).

Almost surely, 2^543161636 is an apocalyptic number.

It is an amenable number.

543161636 is a deficient number, since it is larger than the sum of its proper divisors (407556664).

543161636 is a wasteful number, since it uses less digits than its factorization.

543161636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26494 (or 26492 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 543161636 is about 23305.8283697448. The cubic root of 543161636 is about 815.9114527299.

The spelling of 543161636 in words is "five hundred forty-three million, one hundred sixty-one thousand, six hundred thirty-six".