131424133 has 4 divisors (see below), whose sum is σ = 131461408. Its totient is φ = 131386860.

The previous prime is 131424119. The next prime is 131424169. The reversal of 131424133 is 331424131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331424131 = 31 ⋅10691101.

It is a cyclic number.

It is not a de Polignac number, because 131424133 - 2¹³ = 131415941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131424103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12723 + ... + 20608.

It is an arithmetic number, because the mean of its divisors is an integer number (32865352).

Almost surely, 2^131424133 is an apocalyptic number.

It is an amenable number.

131424133 is a deficient number, since it is larger than the sum of its proper divisors (37275).

131424133 is an equidigital number, since it uses as much as digits as its factorization.

131424133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37274.

The product of its digits is 864, while the sum is 22.

The square root of 131424133 is about 11464.0365055246. The cubic root of 131424133 is about 508.4228259411.

Adding to 131424133 its reverse (331424131), we get a palindrome (462848264).

The spelling of 131424133 in words is "one hundred thirty-one million, four hundred twenty-four thousand, one hundred thirty-three".