1318146401281 has 8 divisors (see below), whose sum is σ = 1353829904424. Its totient is φ = 1282465946880.

The previous prime is 1318146401279. The next prime is 1318146401287. The reversal of 1318146401281 is 1821046418131.

It can be written as a sum of positive squares in 4 ways, for example, as 562957593025 + 755188808256 = 750305^2 + 869016^2 .

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 1318146401281 - 2¹ = 1318146401279 is a prime.

It is a super-2 number, since 2×1318146401281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318146401287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128121 + ... + 1628713.

It is an arithmetic number, because the mean of its divisors is an integer number (169228738053).

Almost surely, 2^{1318146401281} is an apocalyptic number.

It is an amenable number.

1318146401281 is a deficient number, since it is larger than the sum of its proper divisors (35683503143).

1318146401281 is a wasteful number, since it uses less digits than its factorization.

1318146401281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524371.

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 1318146401281 in words is "one trillion, three hundred eighteen billion, one hundred forty-six million, four hundred one thousand, two hundred eighty-one".