1044252521 has 24 divisors (see below), whose sum is σ = 1194711840. Its totient is φ = 909792000.

The previous prime is 1044252511. The next prime is 1044252569. The reversal of 1044252521 is 1252524401.

It is a de Polignac number, because none of the positive numbers 2^k-1044252521 is a prime.

It is a super-2 number, since 2×1044252521² = 2180926655229710882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044252511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1287206 + ... + 1288016.

It is an arithmetic number, because the mean of its divisors is an integer number (49779660).

Almost surely, 2^1044252521 is an apocalyptic number.

It is an amenable number.

1044252521 is a deficient number, since it is larger than the sum of its proper divisors (150459319).

1044252521 is a wasteful number, since it uses less digits than its factorization.

1044252521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1044252521 is about 32314.8962709151. The cubic root of 1044252521 is about 1014.5384495055.

Adding to 1044252521 its reverse (1252524401), we get a palindrome (2296776922).

The spelling of 1044252521 in words is "one billion, forty-four million, two hundred fifty-two thousand, five hundred twenty-one".