1215520145041 has 8 divisors (see below), whose sum is σ = 1216112736384. Its totient is φ = 1214927648880.

The previous prime is 1215520145009. The next prime is 1215520145083. The reversal of 1215520145041 is 1405410255121.

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 1215520145041 - 2⁵ = 1215520145009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1215520144994 and 1215520145012.

It is not an unprimeable number, because it can be changed into a prime (1215520145141) 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, 43489131 + ... + 43517071.

It is an arithmetic number, because the mean of its divisors is an integer number (152014092048).

Almost surely, 2^{1215520145041} is an apocalyptic number.

It is an amenable number.

1215520145041 is a deficient number, since it is larger than the sum of its proper divisors (592591343).

1215520145041 is a wasteful number, since it uses less digits than its factorization.

1215520145041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47591.

The product of its (nonzero) digits is 8000, while the sum is 31.

The spelling of 1215520145041 in words is "one trillion, two hundred fifteen billion, five hundred twenty million, one hundred forty-five thousand, forty-one".