13445311 has 8 divisors (see below), whose sum is σ = 14811264. Its totient is φ = 12103320.

The previous prime is 13445309. The next prime is 13445321. The reversal of 13445311 is 11354431.

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

It is a cyclic number.

It is not a de Polignac number, because 13445311 - 2¹ = 13445309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445321) 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, 4801 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (1851408).

Almost surely, 2^13445311 is an apocalyptic number.

13445311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13445311 is a deficient number, since it is larger than the sum of its proper divisors (1365953).

13445311 is a wasteful number, since it uses less digits than its factorization.

13445311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11981.

The product of its digits is 720, while the sum is 22.

The square root of 13445311 is about 3666.7848314293. The cubic root of 13445311 is about 237.7881916147.

Adding to 13445311 its reverse (11354431), we get a palindrome (24799742).

The spelling of 13445311 in words is "thirteen million, four hundred forty-five thousand, three hundred eleven".