2054185145 has 4 divisors (see below), whose sum is σ = 2465022180. Its totient is φ = 1643348112.

The previous prime is 2054185127. The next prime is 2054185151. The reversal of 2054185145 is 5415814502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 744034729 + 1310150416 = 27277^2 + 36196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054185145 - 2¹⁶ = 2054119609 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205418510 + ... + 205418519.

It is an arithmetic number, because the mean of its divisors is an integer number (616255545).

Almost surely, 2^2054185145 is an apocalyptic number.

It is an amenable number.

2054185145 is a deficient number, since it is larger than the sum of its proper divisors (410837035).

2054185145 is an equidigital number, since it uses as much as digits as its factorization.

2054185145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410837034.

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 2054185145 is about 45323.1193211588. The cubic root of 2054185145 is about 1271.1979819617.

Adding to 2054185145 its reverse (5415814502), we get a palindrome (7469999647).

The spelling of 2054185145 in words is "two billion, fifty-four million, one hundred eighty-five thousand, one hundred forty-five".