2154511541 has 48 divisors (see below), whose sum is σ = 2846016000. Its totient is φ = 1591409664.

The previous prime is 2154511531. The next prime is 2154511547. The reversal of 2154511541 is 1451154512.

It is not a de Polignac number, because 2154511541 - 2⁶ = 2154511477 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 (2154511547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2996180 + ... + 2996898.

It is an arithmetic number, because the mean of its divisors is an integer number (59292000).

Almost surely, 2^2154511541 is an apocalyptic number.

It is an amenable number.

2154511541 is a deficient number, since it is larger than the sum of its proper divisors (691504459).

2154511541 is a wasteful number, since it uses less digits than its factorization.

2154511541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 905 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The square root of 2154511541 is about 46416.7161807037. The cubic root of 2154511541 is about 1291.5650218140.

The spelling of 2154511541 in words is "two billion, one hundred fifty-four million, five hundred eleven thousand, five hundred forty-one".