1361727543 has 16 divisors (see below), whose sum is σ = 1981685376. Its totient is φ = 824876640.

The previous prime is 1361727541. The next prime is 1361727553. The reversal of 1361727543 is 3457271631.

It is not a de Polignac number, because 1361727543 - 2¹ = 1361727541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361727541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64821 + ... + 83217.

It is an arithmetic number, because the mean of its divisors is an integer number (123855336).

Almost surely, 2^1361727543 is an apocalyptic number.

1361727543 is a deficient number, since it is larger than the sum of its proper divisors (619957833).

1361727543 is a wasteful number, since it uses less digits than its factorization.

1361727543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20654.

The product of its digits is 105840, while the sum is 39.

The square root of 1361727543 is about 36901.5926892052. The cubic root of 1361727543 is about 1108.4005703998.

The spelling of 1361727543 in words is "one billion, three hundred sixty-one million, seven hundred twenty-seven thousand, five hundred forty-three".