1329134971 has 4 divisors (see below), whose sum is σ = 1386923472. Its totient is φ = 1271346472.

The previous prime is 1329134957. The next prime is 1329134977. The reversal of 1329134971 is 1794319231.

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 1329134971 - 2⁹ = 1329134459 is a prime.

It is a super-2 number, since 2×1329134971² = 3533199542270341682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1329134977) 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, 28894216 + ... + 28894261.

It is an arithmetic number, because the mean of its divisors is an integer number (346730868).

Almost surely, 2^1329134971 is an apocalyptic number.

1329134971 is a deficient number, since it is larger than the sum of its proper divisors (57788501).

1329134971 is an equidigital number, since it uses as much as digits as its factorization.

1329134971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57788500.

The product of its digits is 40824, while the sum is 40.

The square root of 1329134971 is about 36457.3033972618. The cubic root of 1329134971 is about 1099.4859777448.

The spelling of 1329134971 in words is "one billion, three hundred twenty-nine million, one hundred thirty-four thousand, nine hundred seventy-one".