131433076369 has 27 divisors (see below), whose sum is σ = 155408605947. Its totient is φ = 110831911344.

The previous prime is 131433076331. The next prime is 131433076427. The reversal of 131433076369 is 963670334131.

The square root of 131433076369 is 362537.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8364017025 + 123069059344 = 91455^2 + 350812^2 .

It is not a de Polignac number, because 131433076369 - 2⁷ = 131433076241 is a prime.

It is a super-2 number, since 2×131433076369² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131433079369) 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 in 26 ways as a sum of consecutive naturals, for example, 170029467 + ... + 170030239.

Almost surely, 2^131433076369 is an apocalyptic number.

131433076369 is the 362537-th square number.

131433076369 is the 181269-th centered octagonal number.

It is an amenable number.

131433076369 is a deficient number, since it is larger than the sum of its proper divisors (23975529578).

131433076369 is an frugal number, since it uses more digits than its factorization.

131433076369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 46.

The spelling of 131433076369 in words is "one hundred thirty-one billion, four hundred thirty-three million, seventy-six thousand, three hundred sixty-nine".