1142267887 has 2 divisors, whose sum is σ = 1142267888. Its totient is φ = 1142267886.

The previous prime is 1142267843. The next prime is 1142267891. The reversal of 1142267887 is 7887622411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142267887 - 2⁷ = 1142267759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142267807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571133943 + 571133944.

It is an arithmetic number, because the mean of its divisors is an integer number (571133944).

Almost surely, 2^1142267887 is an apocalyptic number.

1142267887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142267887 is an equidigital number, since it uses as much as digits as its factorization.

1142267887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 46.

The square root of 1142267887 is about 33797.4538538038. The cubic root of 1142267887 is about 1045.3361973145.

The spelling of 1142267887 in words is "one billion, one hundred forty-two million, two hundred sixty-seven thousand, eight hundred eighty-seven".