131133243 has 16 divisors (see below), whose sum is σ = 179665920. Its totient is φ = 85034496.

The previous prime is 131133241. The next prime is 131133253. The reversal of 131133243 is 342331131.

It is not a de Polignac number, because 131133243 - 2¹ = 131133241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131133241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20763 + ... + 26331.

It is an arithmetic number, because the mean of its divisors is an integer number (11229120).

Almost surely, 2^131133243 is an apocalyptic number.

131133243 is a deficient number, since it is larger than the sum of its proper divisors (48532677).

131133243 is a wasteful number, since it uses less digits than its factorization.

131133243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786.

The product of its digits is 648, while the sum is 21.

The square root of 131133243 is about 11451.3424103901. The cubic root of 131133243 is about 508.0474398729.

Adding to 131133243 its reverse (342331131), we get a palindrome (473464374).

The spelling of 131133243 in words is "one hundred thirty-one million, one hundred thirty-three thousand, two hundred forty-three".