131276126873 has 8 divisors (see below), whose sum is σ = 138112525320. Its totient is φ = 124612801920.

The previous prime is 131276126851. The next prime is 131276126897. The reversal of 131276126873 is 378621672131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44891863129 + 86384263744 = 211877^2 + 293912^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131276126873 - 2³⁴ = 114096257689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131276126573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43266818 + ... + 43269851.

It is an arithmetic number, because the mean of its divisors is an integer number (17264065665).

Almost surely, 2^131276126873 is an apocalyptic number.

It is an amenable number.

131276126873 is a deficient number, since it is larger than the sum of its proper divisors (6836398447).

131276126873 is an equidigital number, since it uses as much as digits as its factorization.

131276126873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86536747.

The product of its digits is 508032, while the sum is 47.

The spelling of 131276126873 in words is "one hundred thirty-one billion, two hundred seventy-six million, one hundred twenty-six thousand, eight hundred seventy-three".