1155241543 has 8 divisors (see below), whose sum is σ = 1184981616. Its totient is φ = 1125576000.

The previous prime is 1155241541. The next prime is 1155241561. The reversal of 1155241543 is 3451425511.

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 1155241543 - 2¹ = 1155241541 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 (1155241541) 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, 13468 + ... + 49918.

It is an arithmetic number, because the mean of its divisors is an integer number (148122702).

Almost surely, 2^1155241543 is an apocalyptic number.

1155241543 is a deficient number, since it is larger than the sum of its proper divisors (29740073).

1155241543 is an equidigital number, since it uses as much as digits as its factorization.

1155241543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37265.

The product of its digits is 12000, while the sum is 31.

The square root of 1155241543 is about 33988.8443904761. The cubic root of 1155241543 is about 1049.2788829461.

The spelling of 1155241543 in words is "one billion, one hundred fifty-five million, two hundred forty-one thousand, five hundred forty-three".