1361308489 has 16 divisors (see below), whose sum is σ = 1403982720. Its totient is φ = 1319472000.

The previous prime is 1361308483. The next prime is 1361308537. The reversal of 1361308489 is 9848031631.

It is a cyclic number.

It is not a de Polignac number, because 1361308489 - 2⁵ = 1361308457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361308483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1332799 + ... + 1333819.

It is an arithmetic number, because the mean of its divisors is an integer number (87748920).

Almost surely, 2^1361308489 is an apocalyptic number.

It is an amenable number.

1361308489 is a deficient number, since it is larger than the sum of its proper divisors (42674231).

1361308489 is a wasteful number, since it uses less digits than its factorization.

1361308489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1361308489 is about 36895.9142588986. The cubic root of 1361308489 is about 1108.2868600987.

The spelling of 1361308489 in words is "one billion, three hundred sixty-one million, three hundred eight thousand, four hundred eighty-nine".