1361448081 has 48 divisors (see below), whose sum is σ = 2369098368. Its totient is φ = 765158400.

The previous prime is 1361448079. The next prime is 1361448089. The reversal of 1361448081 is 1808441631.

It is a happy number.

1361448081 is a `hidden beast` number, since 136 + 1 + 448 + 0 + 81 = 666.

It is not a de Polignac number, because 1361448081 - 2¹ = 1361448079 is a prime.

It is a super-2 number, since 2×1361448081² = 3707081754517165122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1361448089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97201 + ... + 110321.

It is an arithmetic number, because the mean of its divisors is an integer number (49356216).

Almost surely, 2^1361448081 is an apocalyptic number.

It is an amenable number.

1361448081 is a deficient number, since it is larger than the sum of its proper divisors (1007650287).

1361448081 is an equidigital number, since it uses as much as digits as its factorization.

1361448081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13204 (or 13192 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1361448081 is about 36897.8059103790. The cubic root of 1361448081 is about 1108.3247409790.

The spelling of 1361448081 in words is "one billion, three hundred sixty-one million, four hundred forty-eight thousand, eighty-one".