1305708971 has 8 divisors (see below), whose sum is σ = 1503989760. Its totient is φ = 1110365928.

The previous prime is 1305708967. The next prime is 1305708973. The reversal of 1305708971 is 1798075031.

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

It is not a de Polignac number, because 1305708971 - 2² = 1305708967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1305708973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733481 + ... + 735258.

It is an arithmetic number, because the mean of its divisors is an integer number (187998720).

Almost surely, 2^1305708971 is an apocalyptic number.

1305708971 is a deficient number, since it is larger than the sum of its proper divisors (198280789).

1305708971 is a wasteful number, since it uses less digits than its factorization.

1305708971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468873.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 1305708971 is about 36134.5952101307. The cubic root of 1305708971 is about 1092.9881732462.

The spelling of 1305708971 in words is "one billion, three hundred five million, seven hundred eight thousand, nine hundred seventy-one".