1543243141 has 8 divisors (see below), whose sum is σ = 1706601024. Its totient is φ = 1383729120.

The previous prime is 1543243133. The next prime is 1543243151. The reversal of 1543243141 is 1413423451.

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 1543243141 - 2³ = 1543243133 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 (1543243151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960121 + ... + 961726.

It is an arithmetic number, because the mean of its divisors is an integer number (213325128).

Almost surely, 2^1543243141 is an apocalyptic number.

1543243141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1543243141 is a deficient number, since it is larger than the sum of its proper divisors (163357883).

1543243141 is a wasteful number, since it uses less digits than its factorization.

1543243141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921931.

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

The square root of 1543243141 is about 39284.1334510512. The cubic root of 1543243141 is about 1155.6104270011.

Adding to 1543243141 its reverse (1413423451), we get a palindrome (2956666592).

The spelling of 1543243141 in words is "one billion, five hundred forty-three million, two hundred forty-three thousand, one hundred forty-one".