1142367771 has 16 divisors (see below), whose sum is σ = 1529819136. Its totient is φ = 758256576.

The previous prime is 1142367767. The next prime is 1142367773. The reversal of 1142367771 is 1777632411.

It is not a de Polignac number, because 1142367771 - 2² = 1142367767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142367773) 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 15 ways as a sum of consecutive naturals, for example, 1198231 + ... + 1199183.

It is an arithmetic number, because the mean of its divisors is an integer number (95613696).

Almost surely, 2^1142367771 is an apocalyptic number.

1142367771 is a deficient number, since it is larger than the sum of its proper divisors (387451365).

1142367771 is an equidigital number, since it uses as much as digits as its factorization.

1142367771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282.

The product of its digits is 49392, while the sum is 39.

The square root of 1142367771 is about 33798.9315067799. The cubic root of 1142367771 is about 1045.3666657416.

The spelling of 1142367771 in words is "one billion, one hundred forty-two million, three hundred sixty-seven thousand, seven hundred seventy-one".