1045513520 has 80 divisors (see below), whose sum is σ = 2467342080. Its totient is φ = 411977472.

The previous prime is 1045513487. The next prime is 1045513531. The reversal of 1045513520 is 253155401.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1045513520.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1856759 + ... + 1857321.

It is an arithmetic number, because the mean of its divisors is an integer number (30841776).

Almost surely, 2^1045513520 is an apocalyptic number.

1045513520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045513520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233671040).

1045513520 is an abundant number, since it is smaller than the sum of its proper divisors (1421828560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045513520 is a wasteful number, since it uses less digits than its factorization.

1045513520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1045513520 is about 32334.4014943837. The cubic root of 1045513520 is about 1014.9466577158.

Adding to 1045513520 its reverse (253155401), we get a palindrome (1298668921).

The spelling of 1045513520 in words is "one billion, forty-five million, five hundred thirteen thousand, five hundred twenty".