2143254523 has 12 divisors (see below), whose sum is σ = 2180002440. Its totient is φ = 2107109376.

The previous prime is 2143254521. The next prime is 2143254527. The reversal of 2143254523 is 3254523412.

It is not a de Polignac number, because 2143254523 - 2¹ = 2143254521 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143254521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2786683 + ... + 2787451.

It is an arithmetic number, because the mean of its divisors is an integer number (181666870).

Almost surely, 2^2143254523 is an apocalyptic number.

2143254523 is a deficient number, since it is larger than the sum of its proper divisors (36747917).

2143254523 is an frugal number, since it uses more digits than its factorization.

2143254523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1365 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 2143254523 is about 46295.2969857630. The cubic root of 2143254523 is about 1289.3116779379.

Adding to 2143254523 its reverse (3254523412), we get a palindrome (5397777935).

The spelling of 2143254523 in words is "two billion, one hundred forty-three million, two hundred fifty-four thousand, five hundred twenty-three".