13113450 has 144 divisors (see below), whose sum is σ = 42247296. Its totient is φ = 2851200.

The previous prime is 13113431. The next prime is 13113467. The reversal of 13113450 is 5431131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 72360 + ... + 72540.

It is an arithmetic number, because the mean of its divisors is an integer number (293384).

Almost surely, 2^13113450 is an apocalyptic number.

13113450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13113450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21123648).

13113450 is an abundant number, since it is smaller than the sum of its proper divisors (29133846).

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

13113450 is a wasteful number, since it uses less digits than its factorization.

13113450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13113450 is about 3621.2497842596. The cubic root of 13113450 is about 235.8154858643.

Adding to 13113450 its reverse (5431131), we get a palindrome (18544581).

It can be divided in two parts, 1311 and 3450, that added together give a square (4761 = 69²).

The spelling of 13113450 in words is "thirteen million, one hundred thirteen thousand, four hundred fifty".