1045013521 has 8 divisors (see below), whose sum is σ = 1083502080. Its totient is φ = 1006688592.

The previous prime is 1045013513. The next prime is 1045013527. The reversal of 1045013521 is 1253105401.

It is a happy number.

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 1045013521 - 2³ = 1045013513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045013492 and 1045013501.

It is not an unprimeable number, because it can be changed into a prime (1045013527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27825 + ... + 53518.

It is an arithmetic number, because the mean of its divisors is an integer number (135437760).

Almost surely, 2^1045013521 is an apocalyptic number.

It is an amenable number.

1045013521 is a deficient number, since it is larger than the sum of its proper divisors (38488559).

1045013521 is an equidigital number, since it uses as much as digits as its factorization.

1045013521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81815.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1045013521 is about 32326.6688819000. The cubic root of 1045013521 is about 1014.7848382774.

Adding to 1045013521 its reverse (1253105401), we get a palindrome (2298118922).

The spelling of 1045013521 in words is "one billion, forty-five million, thirteen thousand, five hundred twenty-one".