2054145523 has 4 divisors (see below), whose sum is σ = 2054393488. Its totient is φ = 2053897560.

The previous prime is 2054145521. The next prime is 2054145607. The reversal of 2054145523 is 3255414502.

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

It is a cyclic number.

It is not a de Polignac number, because 2054145523 - 2¹ = 2054145521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054145521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111111 + ... + 128272.

It is an arithmetic number, because the mean of its divisors is an integer number (513598372).

Almost surely, 2^2054145523 is an apocalyptic number.

2054145523 is a deficient number, since it is larger than the sum of its proper divisors (247965).

2054145523 is an equidigital number, since it uses as much as digits as its factorization.

2054145523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247964.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2054145523 is about 45322.6822132142. The cubic root of 2054145523 is about 1271.1898087727.

The spelling of 2054145523 in words is "two billion, fifty-four million, one hundred forty-five thousand, five hundred twenty-three".