1305160971 has 8 divisors (see below), whose sum is σ = 1740932160. Its totient is φ = 869748552.

The previous prime is 1305160963. The next prime is 1305160993. The reversal of 1305160971 is 1790615031.

It is a happy number.

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

It is not a de Polignac number, because 1305160971 - 2³ = 1305160963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1305160271) 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, 81085 + ... + 95838.

It is an arithmetic number, because the mean of its divisors is an integer number (217616520).

Almost surely, 2^1305160971 is an apocalyptic number.

1305160971 is a deficient number, since it is larger than the sum of its proper divisors (435771189).

1305160971 is a wasteful number, since it uses less digits than its factorization.

1305160971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179385.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 1305160971 is about 36127.0116533322. The cubic root of 1305160971 is about 1092.8352444939.

The spelling of 1305160971 in words is "one billion, three hundred five million, one hundred sixty thousand, nine hundred seventy-one".