131206277354 has 4 divisors (see below), whose sum is σ = 196809416034. Its totient is φ = 65603138676.

The previous prime is 131206277341. The next prime is 131206277357. The reversal of 131206277354 is 453772602131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 126432158329 + 4774119025 = 355573^2 + 69095^2 .

It is not an unprimeable number, because it can be changed into a prime (131206277357) 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, 32801569337 + ... + 32801569340.

Almost surely, 2^131206277354 is an apocalyptic number.

131206277354 is a deficient number, since it is larger than the sum of its proper divisors (65603138680).

131206277354 is an equidigital number, since it uses as much as digits as its factorization.

131206277354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65603138679.

The product of its (nonzero) digits is 211680, while the sum is 41.

Adding to 131206277354 its reverse (453772602131), we get a palindrome (584978879485).

The spelling of 131206277354 in words is "one hundred thirty-one billion, two hundred six million, two hundred seventy-seven thousand, three hundred fifty-four".