1142001445 has 24 divisors (see below), whose sum is σ = 1498730472. Its totient is φ = 834912000.

The previous prime is 1142001431. The next prime is 1142001457. The reversal of 1142001445 is 5441002411.

It can be written as a sum of positive squares in 12 ways, for example, as 559937569 + 582063876 = 23663^2 + 24126^2 .

It is not a de Polignac number, because 1142001445 - 2⁹ = 1142000933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78655 + ... + 92035.

It is an arithmetic number, because the mean of its divisors is an integer number (62447103).

Almost surely, 2^1142001445 is an apocalyptic number.

It is an amenable number.

1142001445 is a deficient number, since it is larger than the sum of its proper divisors (356729027).

1142001445 is a wasteful number, since it uses less digits than its factorization.

1142001445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13513 (or 13500 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1142001445 is about 33793.5118772820. The cubic root of 1142001445 is about 1045.2549136598.

Adding to 1142001445 its reverse (5441002411), we get a palindrome (6583003856).

The spelling of 1142001445 in words is "one billion, one hundred forty-two million, one thousand, four hundred forty-five".