2131161589 has 2 divisors, whose sum is σ = 2131161590. Its totient is φ = 2131161588.

The previous prime is 2131161587. The next prime is 2131161611. The reversal of 2131161589 is 9851611312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2130560964 + 600625 = 46158^2 + 775^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131161589 - 2¹ = 2131161587 is a prime.

It is a super-3 number, since 3×2131161589³ (a number of 29 digits) contains 333 as substring.

Together with 2131161587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131161587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065580794 + 1065580795.

It is an arithmetic number, because the mean of its divisors is an integer number (1065580795).

Almost surely, 2^2131161589 is an apocalyptic number.

It is an amenable number.

2131161589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131161589 is an equidigital number, since it uses as much as digits as its factorization.

2131161589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 37.

The square root of 2131161589 is about 46164.5057268027. The cubic root of 2131161589 is about 1286.8821986369.

The spelling of 2131161589 in words is "two billion, one hundred thirty-one million, one hundred sixty-one thousand, five hundred eighty-nine".