13154320 has 20 divisors (see below), whose sum is σ = 30583980. Its totient is φ = 5261696.

The previous prime is 13154303. The next prime is 13154347. The reversal of 13154320 is 2345131.

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 11505664 = 1284^2 + 3392^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×13154320² = 346072269324800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82135 + ... + 82294.

It is an arithmetic number, because the mean of its divisors is an integer number (1529199).

Almost surely, 2^13154320 is an apocalyptic number.

13154320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13154320 is an abundant number, since it is smaller than the sum of its proper divisors (17429660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13154320 is a wasteful number, since it uses less digits than its factorization.

13154320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164442 (or 164436 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13154320 is about 3626.8884736093. Note that the first 3 decimals coincide. The cubic root of 13154320 is about 236.0602163684.

Adding to 13154320 its reverse (2345131), we get a palindrome (15499451).

The spelling of 13154320 in words is "thirteen million, one hundred fifty-four thousand, three hundred twenty".