1000521452 has 24 divisors (see below), whose sum is σ = 2030913024. Its totient is φ = 422394192.

The previous prime is 1000521443. The next prime is 1000521461. The reversal of 1000521452 is 2541250001.

It is an interprime number because it is at equal distance from previous prime (1000521443) and next prime (1000521461).

It is an unprimeable number.

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, 264788 + ... + 268539.

It is an arithmetic number, because the mean of its divisors is an integer number (84621376).

Almost surely, 2^1000521452 is an apocalyptic number.

It is an amenable number.

1000521452 is an abundant number, since it is smaller than the sum of its proper divisors (1030391572).

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

1000521452 is a wasteful number, since it uses less digits than its factorization.

1000521452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533405 (or 533403 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1000521452 is about 31631.0204071889. The cubic root of 1000521452 is about 1000.1737871296.

Adding to 1000521452 its reverse (2541250001), we get a palindrome (3541771453).

The spelling of 1000521452 in words is "one billion, five hundred twenty-one thousand, four hundred fifty-two".