131314433 has 4 divisors (see below), whose sum is σ = 131392980. Its totient is φ = 131235888.

The previous prime is 131314423. The next prime is 131314441. The reversal of 131314433 is 334413131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41576704 + 89737729 = 6448^2 + 9473^2 .

It is a cyclic number.

It is not a de Polignac number, because 131314433 - 2¹² = 131310337 is a prime.

It is a super-2 number, since 2×131314433² = 34486960628222978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131314399 and 131314408.

It is not an unprimeable number, because it can be changed into a prime (131314423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36710 + ... + 40127.

It is an arithmetic number, because the mean of its divisors is an integer number (32848245).

Almost surely, 2^131314433 is an apocalyptic number.

It is an amenable number.

131314433 is a deficient number, since it is larger than the sum of its proper divisors (78547).

131314433 is an equidigital number, since it uses as much as digits as its factorization.

131314433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78546.

The product of its digits is 1296, while the sum is 23.

The square root of 131314433 is about 11459.2509790125. The cubic root of 131314433 is about 508.2813260299.

Adding to 131314433 its reverse (334413131), we get a palindrome (465727564).

The spelling of 131314433 in words is "one hundred thirty-one million, three hundred fourteen thousand, four hundred thirty-three".