1012504521 has 32 divisors (see below), whose sum is σ = 1610300160. Its totient is φ = 553641984.

The previous prime is 1012504511. The next prime is 1012504541. The reversal of 1012504521 is 1254052101.

It is not a de Polignac number, because 1012504521 - 2⁵ = 1012504489 is a prime.

It is a super-3 number, since 3×1012504521³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1012504511) 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 31 ways as a sum of consecutive naturals, for example, 61461 + ... + 76173.

It is an arithmetic number, because the mean of its divisors is an integer number (50321880).

Almost surely, 2^1012504521 is an apocalyptic number.

It is an amenable number.

1012504521 is a deficient number, since it is larger than the sum of its proper divisors (597795639).

1012504521 is a wasteful number, since it uses less digits than its factorization.

1012504521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14865.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1012504521 is about 31819.8761939766. The cubic root of 1012504521 is about 1004.1509196921.

Adding to 1012504521 its reverse (1254052101), we get a palindrome (2266556622).

The spelling of 1012504521 in words is "one billion, twelve million, five hundred four thousand, five hundred twenty-one".