1045215341521 has 32 divisors (see below), whose sum is σ = 1152488171520. Its totient is φ = 942094540800.

The previous prime is 1045215341461. The next prime is 1045215341543. The reversal of 1045215341521 is 1251435125401.

It is a cyclic number.

It is not a de Polignac number, because 1045215341521 - 2¹³ = 1045215333329 is a prime.

It is a super-2 number, since 2×1045215341521² (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 (1045215341321) 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 31 ways as a sum of consecutive naturals, for example, 38231985 + ... + 38259313.

It is an arithmetic number, because the mean of its divisors is an integer number (36015255360).

Almost surely, 2^{1045215341521} is an apocalyptic number.

It is an amenable number.

1045215341521 is a deficient number, since it is larger than the sum of its proper divisors (107272829999).

1045215341521 is a wasteful number, since it uses less digits than its factorization.

1045215341521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27817.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 1045215341521 in words is "one trillion, forty-five billion, two hundred fifteen million, three hundred forty-one thousand, five hundred twenty-one".