1313545511 has 8 divisors (see below), whose sum is σ = 1410403104. Its totient is φ = 1218864640.

The previous prime is 1313545489. The next prime is 1313545523. The reversal of 1313545511 is 1155453131.

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

It is not a de Polignac number, because 1313545511 - 2²² = 1309351207 is a prime.

It is a super-2 number, since 2×1313545511² = 3450803618936502242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313545531) 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, 542930 + ... + 545343.

It is an arithmetic number, because the mean of its divisors is an integer number (176300388).

Almost surely, 2^1313545511 is an apocalyptic number.

1313545511 is a deficient number, since it is larger than the sum of its proper divisors (96857593).

1313545511 is a wasteful number, since it uses less digits than its factorization.

1313545511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088361.

The product of its digits is 4500, while the sum is 29.

The square root of 1313545511 is about 36242.8684157311. The cubic root of 1313545511 is about 1095.1704275225.

Adding to 1313545511 its reverse (1155453131), we get a palindrome (2468998642).

The spelling of 1313545511 in words is "one billion, three hundred thirteen million, five hundred forty-five thousand, five hundred eleven".