1241959543 has 16 divisors (see below), whose sum is σ = 1424941056. Its totient is φ = 1071433440.

The previous prime is 1241959487. The next prime is 1241959571. The reversal of 1241959543 is 3459591421.

It is not a de Polignac number, because 1241959543 - 2⁹ = 1241959031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1241959543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241957543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12805 + ... + 51457.

It is an arithmetic number, because the mean of its divisors is an integer number (89058816).

Almost surely, 2^1241959543 is an apocalyptic number.

1241959543 is a deficient number, since it is larger than the sum of its proper divisors (182981513).

1241959543 is a wasteful number, since it uses less digits than its factorization.

1241959543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38814.

The product of its digits is 194400, while the sum is 43.

The square root of 1241959543 is about 35241.4463806468. The cubic root of 1241959543 is about 1074.9026897314.

The spelling of 1241959543 in words is "one billion, two hundred forty-one million, nine hundred fifty-nine thousand, five hundred forty-three".