1361292685 has 8 divisors (see below), whose sum is σ = 1655929080. Its totient is φ = 1074115584.

The previous prime is 1361292659. The next prime is 1361292689. The reversal of 1361292685 is 5862921631.

1361292685 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 76930441 + 1284362244 = 8771^2 + 35838^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361292685 - 2⁹ = 1361292173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361292689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1864420 + ... + 1865149.

It is an arithmetic number, because the mean of its divisors is an integer number (206991135).

Almost surely, 2^1361292685 is an apocalyptic number.

It is an amenable number.

1361292685 is a deficient number, since it is larger than the sum of its proper divisors (294636395).

1361292685 is an equidigital number, since it uses as much as digits as its factorization.

1361292685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729647.

The product of its digits is 155520, while the sum is 43.

The square root of 1361292685 is about 36895.7000882217. The cubic root of 1361292685 is about 1108.2825712268.

The spelling of 1361292685 in words is "one billion, three hundred sixty-one million, two hundred ninety-two thousand, six hundred eighty-five".