1142166859 has 4 divisors (see below), whose sum is σ = 1148085016. Its totient is φ = 1136248704.

The previous prime is 1142166841. The next prime is 1142166887. The reversal of 1142166859 is 9586612411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1142166859 - 2¹⁷ = 1142035787 is a prime.

It is a super-3 number, since 3×1142166859³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142166359) 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, 2958789 + ... + 2959174.

It is an arithmetic number, because the mean of its divisors is an integer number (287021254).

Almost surely, 2^1142166859 is an apocalyptic number.

1142166859 is a deficient number, since it is larger than the sum of its proper divisors (5918157).

1142166859 is an equidigital number, since it uses as much as digits as its factorization.

1142166859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5918156.

The product of its digits is 103680, while the sum is 43.

The square root of 1142166859 is about 33795.9592111246. The cubic root of 1142166859 is about 1045.3053781170.

The spelling of 1142166859 in words is "one billion, one hundred forty-two million, one hundred sixty-six thousand, eight hundred fifty-nine".