131084641 has 2 divisors, whose sum is σ = 131084642. Its totient is φ = 131084640.

The previous prime is 131084627. The next prime is 131084651. The reversal of 131084641 is 146480131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125776225 + 5308416 = 11215^2 + 2304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131084641 is a prime.

It is not a weakly prime, because it can be changed into another prime (131084651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65542320 + 65542321.

It is an arithmetic number, because the mean of its divisors is an integer number (65542321).

Almost surely, 2^131084641 is an apocalyptic number.

It is an amenable number.

131084641 is a deficient number, since it is larger than the sum of its proper divisors (1).

131084641 is an equidigital number, since it uses as much as digits as its factorization.

131084641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 131084641 is about 11449.2201044438. The cubic root of 131084641 is about 507.9846661315.

The spelling of 131084641 in words is "one hundred thirty-one million, eighty-four thousand, six hundred forty-one".