1481223115381 has 8 divisors (see below), whose sum is σ = 1572796822104. Its totient is φ = 1390143068160.

The previous prime is 1481223115369. The next prime is 1481223115387. The reversal of 1481223115381 is 1835113221841.

It can be written as a sum of positive squares in 4 ways, for example, as 873867866481 + 607355248900 = 934809^2 + 779330^2 .

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 1481223115381 - 2¹⁷ = 1481222984309 is a prime.

It is a super-2 number, since 2×1481223115381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481223115387) 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, 123408690 + ... + 123420691.

It is an arithmetic number, because the mean of its divisors is an integer number (196599602763).

Almost surely, 2^{1481223115381} is an apocalyptic number.

It is an amenable number.

1481223115381 is a deficient number, since it is larger than the sum of its proper divisors (91573706723).

1481223115381 is a wasteful number, since it uses less digits than its factorization.

1481223115381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246829751.

The product of its digits is 46080, while the sum is 40.

The spelling of 1481223115381 in words is "one trillion, four hundred eighty-one billion, two hundred twenty-three million, one hundred fifteen thousand, three hundred eighty-one".