13145434 has 16 divisors (see below), whose sum is σ = 20349000. Its totient is φ = 6364224.

The previous prime is 13145417. The next prime is 13145449. The reversal of 13145434 is 43454131.

It can be written as a sum of positive squares in 4 ways, for example, as 12938409 + 207025 = 3597^2 + 455^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13145399 and 13145408.

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 7 ways as a sum of consecutive naturals, for example, 25572 + ... + 26080.

Almost surely, 2^13145434 is an apocalyptic number.

13145434 is a deficient number, since it is larger than the sum of its proper divisors (7203566).

13145434 is a wasteful number, since it uses less digits than its factorization.

13145434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897.

The product of its digits is 2880, while the sum is 25.

The square root of 13145434 is about 3625.6632496689. The cubic root of 13145434 is about 236.0070499665.

Adding to 13145434 its reverse (43454131), we get a palindrome (56599565).

The spelling of 13145434 in words is "thirteen million, one hundred forty-five thousand, four hundred thirty-four".