131224234 has 4 divisors (see below), whose sum is σ = 196836354. Its totient is φ = 65612116.

The previous prime is 131224229. The next prime is 131224243. The reversal of 131224234 is 432422131.

131224234 is digitally balanced in base 3, 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., 119968209 + 11256025 = 10953^2 + 3355^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32806057 + ... + 32806060.

Almost surely, 2^131224234 is an apocalyptic number.

131224234 is a deficient number, since it is larger than the sum of its proper divisors (65612120).

131224234 is an equidigital number, since it uses as much as digits as its factorization.

131224234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65612119.

The product of its digits is 1152, while the sum is 22.

The square root of 131224234 is about 11455.3146617629. The cubic root of 131224234 is about 508.1649210329.

Adding to 131224234 its reverse (432422131), we get a palindrome (563646365).

The spelling of 131224234 in words is "one hundred thirty-one million, two hundred twenty-four thousand, two hundred thirty-four".