2131250543 has 4 divisors (see below), whose sum is σ = 2256618240. Its totient is φ = 2005882848.

The previous prime is 2131250533. The next prime is 2131250551. The reversal of 2131250543 is 3450521312.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131250543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131250533) 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, 62683823 + ... + 62683856.

It is an arithmetic number, because the mean of its divisors is an integer number (564154560).

Almost surely, 2^2131250543 is an apocalyptic number.

2131250543 is a deficient number, since it is larger than the sum of its proper divisors (125367697).

2131250543 is a wasteful number, since it uses less digits than its factorization.

2131250543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125367696.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2131250543 is about 46165.4691625678. The cubic root of 2131250543 is about 1286.9001030709.

Adding to 2131250543 its reverse (3450521312), we get a palindrome (5581771855).

The spelling of 2131250543 in words is "two billion, one hundred thirty-one million, two hundred fifty thousand, five hundred forty-three".