1361212275461 has 8 divisors (see below), whose sum is σ = 1380849116760. Its totient is φ = 1341671930368.

The previous prime is 1361212275443. The next prime is 1361212275463. The reversal of 1361212275461 is 1645722121631.

It can be written as a sum of positive squares in 4 ways, for example, as 136239239236 + 1224973036225 = 369106^2 + 1106785^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361212275461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361212275463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24095636 + ... + 24152061.

It is an arithmetic number, because the mean of its divisors is an integer number (172606139595).

Almost surely, 2^{1361212275461} is an apocalyptic number.

It is an amenable number.

1361212275461 is a deficient number, since it is larger than the sum of its proper divisors (19636841299).

1361212275461 is an equidigital number, since it uses as much as digits as its factorization.

1361212275461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48248103.

The product of its digits is 120960, while the sum is 41.

The spelling of 1361212275461 in words is "one trillion, three hundred sixty-one billion, two hundred twelve million, two hundred seventy-five thousand, four hundred sixty-one".