1361443136 has 28 divisors (see below), whose sum is σ = 2726413140. Its totient is φ = 674472960.

The previous prime is 1361443121. The next prime is 1361443141. The reversal of 1361443136 is 6313441631.

It can be written as a sum of positive squares in 2 ways, for example, as 909625600 + 451817536 = 30160^2 + 21256^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 90605 + ... + 104556.

Almost surely, 2^1361443136 is an apocalyptic number.

1361443136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1361443136 is an abundant number, since it is smaller than the sum of its proper divisors (1364970004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361443136 is a wasteful number, since it uses less digits than its factorization.

1361443136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195282 (or 195272 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 1361443136 is about 36897.7389009137. The cubic root of 1361443136 is about 1108.3233991057.

Adding to 1361443136 its reverse (6313441631), we get a palindrome (7674884767).

The spelling of 1361443136 in words is "one billion, three hundred sixty-one million, four hundred forty-three thousand, one hundred thirty-six".