1179740971 has 4 divisors (see below), whose sum is σ = 1179887944. Its totient is φ = 1179594000.

The previous prime is 1179740963. The next prime is 1179740977. The reversal of 1179740971 is 1790479711.

1179740971 = T₂₈₀₄₃ + T₂₈₀₄₄ + T₂₈₀₄₅.

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 1179740971 - 2³ = 1179740963 is a prime.

It is a deceptive number, since it divides R_1179740970.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1179740977) 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, 60705 + ... + 77746.

It is an arithmetic number, because the mean of its divisors is an integer number (294971986).

Almost surely, 2^1179740971 is an apocalyptic number.

1179740971 is the 28045-th centered triangular number.

1179740971 is a deficient number, since it is larger than the sum of its proper divisors (146973).

1179740971 is an equidigital number, since it uses as much as digits as its factorization.

1179740971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146972.

The product of its (nonzero) digits is 111132, while the sum is 46.

The square root of 1179740971 is about 34347.3575548396. The cubic root of 1179740971 is about 1056.6444771164.

The spelling of 1179740971 in words is "one billion, one hundred seventy-nine million, seven hundred forty thousand, nine hundred seventy-one".