1361543223 has 16 divisors (see below), whose sum is σ = 1824477696. Its totient is φ = 903165120.

The previous prime is 1361543203. The next prime is 1361543269. The reversal of 1361543223 is 3223451631.

It is not a de Polignac number, because 1361543223 - 2⁵ = 1361543191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361543203) 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, 571611 + ... + 573987.

It is an arithmetic number, because the mean of its divisors is an integer number (114029856).

Almost surely, 2^1361543223 is an apocalyptic number.

1361543223 is a deficient number, since it is larger than the sum of its proper divisors (462934473).

1361543223 is a wasteful number, since it uses less digits than its factorization.

1361543223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its digits is 12960, while the sum is 30.

The square root of 1361543223 is about 36899.0951515074. The cubic root of 1361543223 is about 1108.3505580429.

Adding to 1361543223 its reverse (3223451631), we get a palindrome (4584994854).

The spelling of 1361543223 in words is "one billion, three hundred sixty-one million, five hundred forty-three thousand, two hundred twenty-three".