2143431541 has 8 divisors (see below), whose sum is σ = 2158341120. Its totient is φ = 2128571232.

The previous prime is 2143431533. The next prime is 2143431551. The reversal of 2143431541 is 1451343412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2143431541 - 2³ = 2143431533 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 (2143431551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77230 + ... + 101248.

It is an arithmetic number, because the mean of its divisors is an integer number (269792640).

Almost surely, 2^2143431541 is an apocalyptic number.

It is an amenable number.

2143431541 is a deficient number, since it is larger than the sum of its proper divisors (14909579).

2143431541 is a wasteful number, since it uses less digits than its factorization.

2143431541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24635.

The product of its digits is 5760, while the sum is 28.

The square root of 2143431541 is about 46297.2087819557. The cubic root of 2143431541 is about 1289.3471730364.

Adding to 2143431541 its reverse (1451343412), we get a palindrome (3594774953).

It can be divided in two parts, 21434 and 31541, that added together give a triangular number (52975 = T₃₂₅).

The spelling of 2143431541 in words is "two billion, one hundred forty-three million, four hundred thirty-one thousand, five hundred forty-one".