131056705 has 16 divisors (see below), whose sum is σ = 173499984. Its totient is φ = 94417920.

The previous prime is 131056697. The next prime is 131056711. The reversal of 131056705 is 507650131.

It is a Cunningham number, because it is equal to 11448²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 55175184 + 75881521 = 7428^2 + 8711^2 .

It is not a de Polignac number, because 131056705 - 2³ = 131056697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21924 + ... + 27253.

It is an arithmetic number, because the mean of its divisors is an integer number (10843749).

Almost surely, 2^131056705 is an apocalyptic number.

It is an amenable number.

131056705 is a deficient number, since it is larger than the sum of its proper divisors (42443279).

131056705 is a wasteful number, since it uses less digits than its factorization.

131056705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49236.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 131056705 is about 11448.0000436758. Note that the first 4 decimals coincide. The cubic root of 131056705 is about 507.9485773170.

The spelling of 131056705 in words is "one hundred thirty-one million, fifty-six thousand, seven hundred five".