131342233 has 6 divisors (see below), whose sum is σ = 144368042. Its totient is φ = 119401920.

The previous prime is 131342227. The next prime is 131342243. The reversal of 131342233 is 332243131.

It can be written as a sum of positive squares in only one way, i.e., 128867904 + 2474329 = 11352^2 + 1573^2 .

It is not a de Polignac number, because 131342233 - 2¹³ = 131334041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131342203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542616 + ... + 542857.

Almost surely, 2^131342233 is an apocalyptic number.

It is an amenable number.

131342233 is a deficient number, since it is larger than the sum of its proper divisors (13025809).

131342233 is a wasteful number, since it uses less digits than its factorization.

131342233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085495 (or 1085484 counting only the distinct ones).

The product of its digits is 1296, while the sum is 22.

The square root of 131342233 is about 11460.4639085859. The cubic root of 131342233 is about 508.3171921657.

Adding to 131342233 its reverse (332243131), we get a palindrome (463585364).

The spelling of 131342233 in words is "one hundred thirty-one million, three hundred forty-two thousand, two hundred thirty-three".