13117450 has 12 divisors (see below), whose sum is σ = 24398550. Its totient is φ = 5246960.

The previous prime is 13117427. The next prime is 13117453. The reversal of 13117450 is 5471131.

It can be written as a sum of positive squares in 3 ways, for example, as 6568969 + 6548481 = 2563^2 + 2559^2 .

It is not an unprimeable number, because it can be changed into a prime (13117453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131125 + ... + 131224.

Almost surely, 2^13117450 is an apocalyptic number.

13117450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13117450 is a deficient number, since it is larger than the sum of its proper divisors (11281100).

13117450 is a wasteful number, since it uses less digits than its factorization.

13117450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262361 (or 262356 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 13117450 is about 3621.8020376603. The cubic root of 13117450 is about 235.8394603854.

Adding to 13117450 its reverse (5471131), we get a palindrome (18588581).

The spelling of 13117450 in words is "thirteen million, one hundred seventeen thousand, four hundred fifty".