1361326144 has 28 divisors (see below), whose sum is σ = 2709079164. Its totient is φ = 678723584.

The previous prime is 1361326129. The next prime is 1361326151. The reversal of 1361326144 is 4416231631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 836366400 + 524959744 = 28920^2 + 22912^2 .

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, 7537 + ... + 52720.

Almost surely, 2^1361326144 is an apocalyptic number.

It is an amenable number.

1361326144 is a deficient number, since it is larger than the sum of its proper divisors (1347753020).

1361326144 is an equidigital number, since it uses as much as digits as its factorization.

1361326144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60622 (or 60612 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 1361326144 is about 36896.1535122565. The cubic root of 1361326144 is about 1108.2916512537.

Adding to 1361326144 its reverse (4416231631), we get a palindrome (5777557775).

The spelling of 1361326144 in words is "one billion, three hundred sixty-one million, three hundred twenty-six thousand, one hundred forty-four".