1331164505 has 8 divisors (see below), whose sum is σ = 1742615424. Its totient is φ = 968119600.

The previous prime is 1331164493. The next prime is 1331164517. The reversal of 1331164505 is 5054611331.

It is an interprime number because it is at equal distance from previous prime (1331164493) and next prime (1331164517).

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

It is not a de Polignac number, because 1331164505 - 2⁴ = 1331164489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12101441 + ... + 12101550.

It is an arithmetic number, because the mean of its divisors is an integer number (217826928).

Almost surely, 2^1331164505 is an apocalyptic number.

It is an amenable number.

1331164505 is a deficient number, since it is larger than the sum of its proper divisors (411450919).

1331164505 is a wasteful number, since it uses less digits than its factorization.

1331164505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24203007.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1331164505 is about 36485.1271753299. The cubic root of 1331164505 is about 1100.0453163149.

Adding to 1331164505 its reverse (5054611331), we get a palindrome (6385775836).

The spelling of 1331164505 in words is "one billion, three hundred thirty-one million, one hundred sixty-four thousand, five hundred five".