13531234 has 4 divisors (see below), whose sum is σ = 20296854. Its totient is φ = 6765616.

The previous prime is 13531229. The next prime is 13531277. The reversal of 13531234 is 43213531.

13531234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 7306209 + 6225025 = 2703^2 + 2495^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382807 + ... + 3382810.

Almost surely, 2^13531234 is an apocalyptic number.

13531234 is a deficient number, since it is larger than the sum of its proper divisors (6765620).

13531234 is an equidigital number, since it uses as much as digits as its factorization.

13531234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765619.

The product of its digits is 1080, while the sum is 22.

The square root of 13531234 is about 3678.4825675814. The cubic root of 13531234 is about 238.2936492629.

Adding to 13531234 its reverse (43213531), we get a palindrome (56744765).

The spelling of 13531234 in words is "thirteen million, five hundred thirty-one thousand, two hundred thirty-four".