2154741636 has 24 divisors (see below), whose sum is σ = 5323479840. Its totient is φ = 675997312.

The previous prime is 2154741629. The next prime is 2154741679. The reversal of 2154741636 is 6361474512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2154741594 and 2154741603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5281026 + ... + 5281433.

It is an arithmetic number, because the mean of its divisors is an integer number (221811660).

Almost surely, 2^2154741636 is an apocalyptic number.

It is an amenable number.

2154741636 is an abundant number, since it is smaller than the sum of its proper divisors (3168738204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154741636 is a wasteful number, since it uses less digits than its factorization.

2154741636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10562483 (or 10562481 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 2154741636 is about 46419.1946935748. The cubic root of 2154741636 is about 1291.6109985267.

The spelling of 2154741636 in words is "two billion, one hundred fifty-four million, seven hundred forty-one thousand, six hundred thirty-six".