13145450 has 12 divisors (see below), whose sum is σ = 24450630. Its totient is φ = 5258160.

The previous prime is 13145449. The next prime is 13145479. The reversal of 13145450 is 5454131.

It can be written as a sum of positive squares in 3 ways, for example, as 12369289 + 776161 = 3517^2 + 881^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131405 + ... + 131504.

Almost surely, 2^13145450 is an apocalyptic number.

13145450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13145450 is a deficient number, since it is larger than the sum of its proper divisors (11305180).

13145450 is a wasteful number, since it uses less digits than its factorization.

13145450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262921 (or 262916 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 13145450 is about 3625.6654561611. The cubic root of 13145450 is about 236.0071457187.

Adding to 13145450 its reverse (5454131), we get a palindrome (18599581).

The spelling of 13145450 in words is "thirteen million, one hundred forty-five thousand, four hundred fifty".