2054540243 has 8 divisors (see below), whose sum is σ = 2471627520. Its totient is φ = 1668348360.

The previous prime is 2054540239. The next prime is 2054540261. The reversal of 2054540243 is 3420454502.

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

It is not a de Polignac number, because 2054540243 - 2² = 2054540239 is a prime.

It is a super-2 number, since 2×2054540243² = 8442271220212998098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054540233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7723703 + ... + 7723968.

It is an arithmetic number, because the mean of its divisors is an integer number (308953440).

Almost surely, 2^2054540243 is an apocalyptic number.

2054540243 is a deficient number, since it is larger than the sum of its proper divisors (417087277).

2054540243 is a wasteful number, since it uses less digits than its factorization.

2054540243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15447697.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 2054540243 is about 45327.0365565630. The cubic root of 2054540243 is about 1271.2712265528.

Adding to 2054540243 its reverse (3420454502), we get a palindrome (5474994745).

The spelling of 2054540243 in words is "two billion, fifty-four million, five hundred forty thousand, two hundred forty-three".