1179871265 has 8 divisors (see below), whose sum is σ = 1418212800. Its totient is φ = 942318832.

The previous prime is 1179871261. The next prime is 1179871271. The reversal of 1179871265 is 5621789711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1179871265 - 2² = 1179871261 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1179871261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193979 + ... + 199968.

It is an arithmetic number, because the mean of its divisors is an integer number (177276600).

Almost surely, 2^1179871265 is an apocalyptic number.

It is an amenable number.

1179871265 is a deficient number, since it is larger than the sum of its proper divisors (238341535).

1179871265 is an equidigital number, since it uses as much as digits as its factorization.

1179871265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394551.

The product of its digits is 211680, while the sum is 47.

The square root of 1179871265 is about 34349.2542131558. The cubic root of 1179871265 is about 1056.6833753070.

The spelling of 1179871265 in words is "one billion, one hundred seventy-nine million, eight hundred seventy-one thousand, two hundred sixty-five".