1142604521 has 2 divisors, whose sum is σ = 1142604522. Its totient is φ = 1142604520.

The previous prime is 1142604499. The next prime is 1142604607. The reversal of 1142604521 is 1254062411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002418921 + 140185600 = 31661^2 + 11840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142604521 - 2³⁰ = 68862697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142204521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571302260 + 571302261.

It is an arithmetic number, because the mean of its divisors is an integer number (571302261).

Almost surely, 2^1142604521 is an apocalyptic number.

It is an amenable number.

1142604521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142604521 is an equidigital number, since it uses as much as digits as its factorization.

1142604521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1142604521 is about 33802.4336549900. The cubic root of 1142604521 is about 1045.4388764223.

Adding to 1142604521 its reverse (1254062411), we get a palindrome (2396666932).

The spelling of 1142604521 in words is "one billion, one hundred forty-two million, six hundred four thousand, five hundred twenty-one".