13145234 has 4 divisors (see below), whose sum is σ = 19717854. Its totient is φ = 6572616.

The previous prime is 13145203. The next prime is 13145243. The reversal of 13145234 is 43254131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12271009 + 874225 = 3503^2 + 935^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3286307 + ... + 3286310.

Almost surely, 2^13145234 is an apocalyptic number.

13145234 is a deficient number, since it is larger than the sum of its proper divisors (6572620).

13145234 is an equidigital number, since it uses as much as digits as its factorization.

13145234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572619.

The product of its digits is 1440, while the sum is 23.

The square root of 13145234 is about 3625.6356684035. The cubic root of 13145234 is about 236.0058530579.

Adding to 13145234 its reverse (43254131), we get a palindrome (56399365).

The spelling of 13145234 in words is "thirteen million, one hundred forty-five thousand, two hundred thirty-four".