1154342143 has 8 divisors (see below), whose sum is σ = 1223028720. Its totient is φ = 1085742720.

The previous prime is 1154342141. The next prime is 1154342179. The reversal of 1154342143 is 3412434511.

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 1154342143 - 2¹ = 1154342141 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 (1154342141) 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, 6553 + ... + 48493.

It is an arithmetic number, because the mean of its divisors is an integer number (152878590).

Almost surely, 2^1154342143 is an apocalyptic number.

1154342143 is a deficient number, since it is larger than the sum of its proper divisors (68686577).

1154342143 is a wasteful number, since it uses less digits than its factorization.

1154342143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43577.

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

The square root of 1154342143 is about 33975.6110026001. The cubic root of 1154342143 is about 1049.0065109194.

Adding to 1154342143 its reverse (3412434511), we get a palindrome (4566776654).

The spelling of 1154342143 in words is "one billion, one hundred fifty-four million, three hundred forty-two thousand, one hundred forty-three".