131246575326749 has 2 divisors, whose sum is σ = 131246575326750. Its totient is φ = 131246575326748.

The previous prime is 131246575326677. The next prime is 131246575326773. The reversal of 131246575326749 is 947623575642131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70426385713849 + 60820189612900 = 8392043^2 + 7798730^2 .

It is a cyclic number.

It is not a de Polignac number, because 131246575326749 - 2¹⁶ = 131246575261213 is a prime.

It is a super-2 number, since 2×131246575326749² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131246575326149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65623287663374 + 65623287663375.

It is an arithmetic number, because the mean of its divisors is an integer number (65623287663375).

Almost surely, 2^{131246575326749} is an apocalyptic number.

It is an amenable number.

131246575326749 is a deficient number, since it is larger than the sum of its proper divisors (1).

131246575326749 is an equidigital number, since it uses as much as digits as its factorization.

131246575326749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 228614400, while the sum is 65.

The spelling of 131246575326749 in words is "one hundred thirty-one trillion, two hundred forty-six billion, five hundred seventy-five million, three hundred twenty-six thousand, seven hundred forty-nine".