2154652689 has 8 divisors (see below), whose sum is σ = 3283280320. Its totient is φ = 1231230096.

The previous prime is 2154652679. The next prime is 2154652723. The reversal of 2154652689 is 9862564512.

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

It is not a de Polignac number, because 2154652689 - 2⁵ = 2154652657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154652639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51301234 + ... + 51301275.

It is an arithmetic number, because the mean of its divisors is an integer number (410410040).

Almost surely, 2^2154652689 is an apocalyptic number.

It is an amenable number.

2154652689 is a deficient number, since it is larger than the sum of its proper divisors (1128627631).

2154652689 is a wasteful number, since it uses less digits than its factorization.

2154652689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102602519.

The product of its digits is 1036800, while the sum is 48.

The square root of 2154652689 is about 46418.2365994229. The cubic root of 2154652689 is about 1291.5932258617.

The spelling of 2154652689 in words is "two billion, one hundred fifty-four million, six hundred fifty-two thousand, six hundred eighty-nine".