131342441 has 2 divisors, whose sum is σ = 131342442. Its totient is φ = 131342440.

The previous prime is 131342429. The next prime is 131342447. The reversal of 131342441 is 144243131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108264025 + 23078416 = 10405^2 + 4804^2 .

It is a cyclic number.

It is not a de Polignac number, because 131342441 - 2¹⁰ = 131341417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131342447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65671220 + 65671221.

It is an arithmetic number, because the mean of its divisors is an integer number (65671221).

Almost surely, 2^131342441 is an apocalyptic number.

It is an amenable number.

131342441 is a deficient number, since it is larger than the sum of its proper divisors (1).

131342441 is an equidigital number, since it uses as much as digits as its factorization.

131342441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 131342441 is about 11460.4729832586. The cubic root of 131342441 is about 508.3174604975.

Adding to 131342441 its reverse (144243131), we get a palindrome (275585572).

The spelling of 131342441 in words is "one hundred thirty-one million, three hundred forty-two thousand, four hundred forty-one".