1142052647 has 2 divisors, whose sum is σ = 1142052648. Its totient is φ = 1142052646.

The previous prime is 1142052641. The next prime is 1142052719. The reversal of 1142052647 is 7462502411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1142052647 - 2⁴ = 1142052631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142052641) 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, 571026323 + 571026324.

It is an arithmetic number, because the mean of its divisors is an integer number (571026324).

Almost surely, 2^1142052647 is an apocalyptic number.

1142052647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142052647 is an equidigital number, since it uses as much as digits as its factorization.

1142052647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1142052647 is about 33794.2694402468. The cubic root of 1142052647 is about 1045.2705348725.

The spelling of 1142052647 in words is "one billion, one hundred forty-two million, fifty-two thousand, six hundred forty-seven".