1024325721 has 6 divisors (see below), whose sum is σ = 1479581610. Its totient is φ = 682883808.

The previous prime is 1024325713. The next prime is 1024325737. The reversal of 1024325721 is 1275234201.

It can be written as a sum of positive squares in only one way, i.e., 665640000 + 358685721 = 25800^2 + 18939^2 .

It is not a de Polignac number, because 1024325721 - 2³ = 1024325713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1024325761) 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 5 ways as a sum of consecutive naturals, for example, 56906976 + ... + 56906993.

It is an arithmetic number, because the mean of its divisors is an integer number (246596935).

Almost surely, 2^1024325721 is an apocalyptic number.

It is an amenable number.

1024325721 is a deficient number, since it is larger than the sum of its proper divisors (455255889).

1024325721 is a wasteful number, since it uses less digits than its factorization.

1024325721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113813975 (or 113813972 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1024325721 is about 32005.0889859722. The cubic root of 1024325721 is about 1008.0436990929.

Adding to 1024325721 its reverse (1275234201), we get a palindrome (2299559922).

The spelling of 1024325721 in words is "one billion, twenty-four million, three hundred twenty-five thousand, seven hundred twenty-one".