131406447706 has 8 divisors (see below), whose sum is σ = 197170876404. Its totient is φ = 65682822240.

The previous prime is 131406447691. The next prime is 131406447709. The reversal of 131406447706 is 607744604131.

It can be written as a sum of positive squares in 2 ways, for example, as 124991238681 + 6415209025 = 353541^2 + 80095^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131406447709) 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 3 ways as a sum of consecutive naturals, for example, 10192755 + ... + 10205638.

Almost surely, 2^131406447706 is an apocalyptic number.

131406447706 is a deficient number, since it is larger than the sum of its proper divisors (65764428698).

131406447706 is a wasteful number, since it uses less digits than its factorization.

131406447706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20401616.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 131406447706 in words is "one hundred thirty-one billion, four hundred six million, four hundred forty-seven thousand, seven hundred six".