2154554545 has 32 divisors (see below), whose sum is σ = 3042353664. Its totient is φ = 1444089600.

The previous prime is 2154554539. The next prime is 2154554557. The reversal of 2154554545 is 5454554512.

It is not a de Polignac number, because 2154554545 - 2¹¹ = 2154552497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154554498 and 2154554507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522040 + ... + 526150.

It is an arithmetic number, because the mean of its divisors is an integer number (95073552).

Almost surely, 2^2154554545 is an apocalyptic number.

It is an amenable number.

2154554545 is a deficient number, since it is larger than the sum of its proper divisors (887799119).

2154554545 is a wasteful number, since it uses less digits than its factorization.

2154554545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873.

The product of its digits is 400000, while the sum is 40.

The square root of 2154554545 is about 46417.1794166772. The cubic root of 2154554545 is about 1291.5736149593.

The spelling of 2154554545 in words is "two billion, one hundred fifty-four million, five hundred fifty-four thousand, five hundred forty-five".