1021324145 has 16 divisors (see below), whose sum is σ = 1257938640. Its totient is φ = 795571200.

The previous prime is 1021324141. The next prime is 1021324153. The reversal of 1021324145 is 5414231201.

1021324145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 322884961 + 698439184 = 17969^2 + 26428^2 .

It is not a de Polignac number, because 1021324145 - 2² = 1021324141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021324145.

It is not an unprimeable number, because it can be changed into a prime (1021324141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106301 + ... + 115509.

It is an arithmetic number, because the mean of its divisors is an integer number (78621165).

Almost surely, 2^1021324145 is an apocalyptic number.

It is an amenable number.

1021324145 is a deficient number, since it is larger than the sum of its proper divisors (236614495).

1021324145 is an equidigital number, since it uses as much as digits as its factorization.

1021324145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9796.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1021324145 is about 31958.1624158837. The cubic root of 1021324145 is about 1007.0581141533.

Adding to 1021324145 its reverse (5414231201), we get a palindrome (6435555346).

The spelling of 1021324145 in words is "one billion, twenty-one million, three hundred twenty-four thousand, one hundred forty-five".