2140889369 has 2 divisors, whose sum is σ = 2140889370. Its totient is φ = 2140889368.

The previous prime is 2140889347. The next prime is 2140889371. The reversal of 2140889369 is 9639880412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1721254144 + 419635225 = 41488^2 + 20485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140889369 - 2²⁰ = 2139840793 is a prime.

It is a super-2 number, since 2×2140889369² = 9166814580594436322, which contains 22 as substring.

Together with 2140889371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2140889329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070444684 + 1070444685.

It is an arithmetic number, because the mean of its divisors is an integer number (1070444685).

Almost surely, 2^2140889369 is an apocalyptic number.

It is an amenable number.

2140889369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140889369 is an equidigital number, since it uses as much as digits as its factorization.

2140889369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 2140889369 is about 46269.7457200707. The cubic root of 2140889369 is about 1288.8372369976.

The spelling of 2140889369 in words is "two billion, one hundred forty million, eight hundred eighty-nine thousand, three hundred sixty-nine".