2149989167 has 8 divisors (see below), whose sum is σ = 2284565472. Its totient is φ = 2016313600.

The previous prime is 2149989157. The next prime is 2149989209. The reversal of 2149989167 is 7619899412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2149989167 - 2⁴ = 2149989151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149989157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220259 + ... + 229812.

It is an arithmetic number, because the mean of its divisors is an integer number (285570684).

Almost surely, 2^2149989167 is an apocalyptic number.

2149989167 is a deficient number, since it is larger than the sum of its proper divisors (134576305).

2149989167 is a wasteful number, since it uses less digits than its factorization.

2149989167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450369.

The product of its digits is 1959552, while the sum is 56.

The square root of 2149989167 is about 46367.9756620882. The cubic root of 2149989167 is about 1290.6607129571.

The spelling of 2149989167 in words is "two billion, one hundred forty-nine million, nine hundred eighty-nine thousand, one hundred sixty-seven".