1166072939 has 4 divisors (see below), whose sum is σ = 1167183480. Its totient is φ = 1164962400.

The previous prime is 1166072933. The next prime is 1166072951. The reversal of 1166072939 is 9392706611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9392706611 = 68863 ⋅136397.

It is a cyclic number.

It is not a de Polignac number, because 1166072939 - 2¹² = 1166068843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166072939.

It is not an unprimeable number, because it can be changed into a prime (1166072933) 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, 553694 + ... + 555795.

It is an arithmetic number, because the mean of its divisors is an integer number (291795870).

Almost surely, 2^1166072939 is an apocalyptic number.

1166072939 is a deficient number, since it is larger than the sum of its proper divisors (1110541).

1166072939 is a wasteful number, since it uses less digits than its factorization.

1166072939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110540.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1166072939 is about 34147.8101640501. The cubic root of 1166072939 is about 1052.5479884763.

The spelling of 1166072939 in words is "one billion, one hundred sixty-six million, seventy-two thousand, nine hundred thirty-nine".