1142006441 has 4 divisors (see below), whose sum is σ = 1142350992. Its totient is φ = 1141661892.

The previous prime is 1142006431. The next prime is 1142006447. The reversal of 1142006441 is 1446002411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1446002411 = 7 ⋅206571773.

It is a cyclic number.

It is not a de Polignac number, because 1142006441 - 2³⁰ = 68264617 is a prime.

It is a super-2 number, since 2×1142006441² = 2608357422570972962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142006447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167255 + ... + 173948.

It is an arithmetic number, because the mean of its divisors is an integer number (285587748).

Almost surely, 2^1142006441 is an apocalyptic number.

It is an amenable number.

1142006441 is a deficient number, since it is larger than the sum of its proper divisors (344551).

1142006441 is an equidigital number, since it uses as much as digits as its factorization.

1142006441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344550.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1142006441 is about 33793.5857967159. The cubic root of 1142006441 is about 1045.2564379095.

Adding to 1142006441 its reverse (1446002411), we get a palindrome (2588008852).

The spelling of 1142006441 in words is "one billion, one hundred forty-two million, six thousand, four hundred forty-one".