2131099559 has 2 divisors, whose sum is σ = 2131099560. Its totient is φ = 2131099558.

The previous prime is 2131099547. The next prime is 2131099589. The reversal of 2131099559 is 9559901312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131099559 - 2⁴ = 2131099543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131099589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065549779 + 1065549780.

It is an arithmetic number, because the mean of its divisors is an integer number (1065549780).

Almost surely, 2^2131099559 is an apocalyptic number.

2131099559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131099559 is an equidigital number, since it uses as much as digits as its factorization.

2131099559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 2131099559 is about 46163.8338854129. The cubic root of 2131099559 is about 1286.8697131020.

The spelling of 2131099559 in words is "two billion, one hundred thirty-one million, ninety-nine thousand, five hundred fifty-nine".