2154559203 has 12 divisors (see below), whose sum is σ = 3192296920. Its totient is φ = 1436212008.

The previous prime is 2154559153. The next prime is 2154559217. The reversal of 2154559203 is 3029554512.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

2154559203 is a `hidden beast` number, since 21 + 5 + 45 + 592 + 0 + 3 = 666.

It is not a de Polignac number, because 2154559203 - 2¹³ = 2154551011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154559103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236725 + ... + 245657.

Almost surely, 2^2154559203 is an apocalyptic number.

2154559203 is a deficient number, since it is larger than the sum of its proper divisors (1037737717).

2154559203 is an frugal number, since it uses more digits than its factorization.

2154559203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17875 (or 8936 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 2154559203 is about 46417.2295920383. The cubic root of 2154559203 is about 1291.5745457234.

The spelling of 2154559203 in words is "two billion, one hundred fifty-four million, five hundred fifty-nine thousand, two hundred three".