1142505711 has 6 divisors (see below), whose sum is σ = 1650286040. Its totient is φ = 761670468.

The previous prime is 1142505691. The next prime is 1142505731. The reversal of 1142505711 is 1175052411.

1142505711 is a `hidden beast` number, since 1 + 1 + 42 + 50 + 571 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1142505691) and next prime (1142505731).

It is not a de Polignac number, because 1142505711 - 2¹⁰ = 1142504687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142505731) 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 in 5 ways as a sum of consecutive naturals, for example, 63472531 + ... + 63472548.

Almost surely, 2^1142505711 is an apocalyptic number.

1142505711 is a deficient number, since it is larger than the sum of its proper divisors (507780329).

1142505711 is a wasteful number, since it uses less digits than its factorization.

1142505711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126945085 (or 126945082 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 1142505711 is about 33800.9720422357. The cubic root of 1142505711 is about 1045.4087397794.

The spelling of 1142505711 in words is "one billion, one hundred forty-two million, five hundred five thousand, seven hundred eleven".