131434747 has 2 divisors, whose sum is σ = 131434748. Its totient is φ = 131434746.

The previous prime is 131434739. The next prime is 131434759. The reversal of 131434747 is 747434131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131434747 - 2³ = 131434739 is a prime.

It is not a weakly prime, because it can be changed into another prime (131434727) 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 as a sum of consecutive naturals, namely, 65717373 + 65717374.

It is an arithmetic number, because the mean of its divisors is an integer number (65717374).

Almost surely, 2^131434747 is an apocalyptic number.

131434747 is a deficient number, since it is larger than the sum of its proper divisors (1).

131434747 is an equidigital number, since it uses as much as digits as its factorization.

131434747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 34.

The square root of 131434747 is about 11464.4994221292. The cubic root of 131434747 is about 508.4365125563.

Adding to 131434747 its reverse (747434131), we get a palindrome (878868878).

The spelling of 131434747 in words is "one hundred thirty-one million, four hundred thirty-four thousand, seven hundred forty-seven".