131434441 has 2 divisors, whose sum is σ = 131434442. Its totient is φ = 131434440.

The previous prime is 131434421. The next prime is 131434453. The reversal of 131434441 is 144434131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67897600 + 63536841 = 8240^2 + 7971^2 .

It is an emirp because it is prime and its reverse (144434131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131434441 - 2⁷ = 131434313 is a prime.

It is not a weakly prime, because it can be changed into another prime (131434421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65717220 + 65717221.

It is an arithmetic number, because the mean of its divisors is an integer number (65717221).

Almost surely, 2^131434441 is an apocalyptic number.

It is an amenable number.

131434441 is a deficient number, since it is larger than the sum of its proper divisors (1).

131434441 is an equidigital number, since it uses as much as digits as its factorization.

131434441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 131434441 is about 11464.4860765758. The cubic root of 131434441 is about 508.4361179836.

Adding to 131434441 its reverse (144434131), we get a palindrome (275868572).

The spelling of 131434441 in words is "one hundred thirty-one million, four hundred thirty-four thousand, four hundred forty-one".