131409431771 has 8 divisors (see below), whose sum is σ = 134476271424. Its totient is φ = 128343083400.

The previous prime is 131409431761. The next prime is 131409431789. The reversal of 131409431771 is 177134904131.

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 131409431771 - 2¹⁸ = 131409169627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131409431711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449096 + ... + 681546.

It is an arithmetic number, because the mean of its divisors is an integer number (16809533928).

Almost surely, 2^131409431771 is an apocalyptic number.

131409431771 is a deficient number, since it is larger than the sum of its proper divisors (3066839653).

131409431771 is a wasteful number, since it uses less digits than its factorization.

131409431771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245641.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 131409431771 in words is "one hundred thirty-one billion, four hundred nine million, four hundred thirty-one thousand, seven hundred seventy-one".