131066361 has 6 divisors (see below), whose sum is σ = 189318090. Its totient is φ = 87377568.

The previous prime is 131066359. The next prime is 131066363. The reversal of 131066361 is 163660131.

It is a happy number.

131066361 is a `hidden beast` number, since 13 + 10 + 6 + 636 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (131066359) and next prime (131066363).

It can be written as a sum of positive squares in only one way, i.e., 125014761 + 6051600 = 11181^2 + 2460^2 .

It is not a de Polignac number, because 131066361 - 2¹ = 131066359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131066363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7281456 + ... + 7281473.

It is an arithmetic number, because the mean of its divisors is an integer number (31553015).

Almost surely, 2^131066361 is an apocalyptic number.

It is an amenable number.

131066361 is a deficient number, since it is larger than the sum of its proper divisors (58251729).

131066361 is a wasteful number, since it uses less digits than its factorization.

131066361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14562935 (or 14562932 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 131066361 is about 11448.4217689601. The cubic root of 131066361 is about 507.9610518944.

The spelling of 131066361 in words is "one hundred thirty-one million, sixty-six thousand, three hundred sixty-one".