2143254503 has 4 divisors (see below), whose sum is σ = 2308120248. Its totient is φ = 1978388760.

The previous prime is 2143254499. The next prime is 2143254521. The reversal of 2143254503 is 3054523412.

It is a happy number.

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 2143254503 - 2² = 2143254499 is a prime.

It is a super-3 number, since 3×2143254503³ (a number of 29 digits) contains 333 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143254593) 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, 82432853 + ... + 82432878.

It is an arithmetic number, because the mean of its divisors is an integer number (577030062).

Almost surely, 2^2143254503 is an apocalyptic number.

2143254503 is a deficient number, since it is larger than the sum of its proper divisors (164865745).

2143254503 is a wasteful number, since it uses less digits than its factorization.

2143254503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164865744.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2143254503 is about 46295.2967697584. The cubic root of 2143254503 is about 1289.3116739275.

Adding to 2143254503 its reverse (3054523412), we get a palindrome (5197777915).

The spelling of 2143254503 in words is "two billion, one hundred forty-three million, two hundred fifty-four thousand, five hundred three".