1361345425305 has 32 divisors (see below), whose sum is σ = 2406552332544. Its totient is φ = 653631492096.

The previous prime is 1361345425289. The next prime is 1361345425361. The reversal of 1361345425305 is 5035245431631.

It is a happy number.

It is not a de Polignac number, because 1361345425305 - 2⁴ = 1361345425289 is a prime.

It is a super-2 number, since 2×1361345425305² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116050864 + ... + 116062593.

It is an arithmetic number, because the mean of its divisors is an integer number (75204760392).

Almost surely, 2^{1361345425305} is an apocalyptic number.

1361345425305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1361345425305 is a deficient number, since it is larger than the sum of its proper divisors (1045206907239).

1361345425305 is a wasteful number, since it uses less digits than its factorization.

1361345425305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232113505.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 1361345425305 in words is "one trillion, three hundred sixty-one billion, three hundred forty-five million, four hundred twenty-five thousand, three hundred five".