1142166079 has 4 divisors (see below), whose sum is σ = 1144744776. Its totient is φ = 1139587384.

The previous prime is 1142166049. The next prime is 1142166089. The reversal of 1142166079 is 9706612411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9706612411 = 2803 ⋅3462937.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142166079 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 (1142166049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288684 + ... + 1289569.

It is an arithmetic number, because the mean of its divisors is an integer number (286186194).

Almost surely, 2^1142166079 is an apocalyptic number.

1142166079 is a deficient number, since it is larger than the sum of its proper divisors (2578697).

1142166079 is an equidigital number, since it uses as much as digits as its factorization.

1142166079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578696.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1142166079 is about 33795.9476712815. The cubic root of 1142166079 is about 1045.3051401662.

It can be divided in two parts, 114216 and 6079, that added together give a triangular number (120295 = T₄₉₀).

The spelling of 1142166079 in words is "one billion, one hundred forty-two million, one hundred sixty-six thousand, seventy-nine".