1142535541 has 16 divisors (see below), whose sum is σ = 1385748864. Its totient is φ = 919586304.

The previous prime is 1142535517. The next prime is 1142535547. The reversal of 1142535541 is 1455352411.

It is not a de Polignac number, because 1142535541 - 2⁹ = 1142535029 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 (1142535547) 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, 41881 + ... + 63553.

It is an arithmetic number, because the mean of its divisors is an integer number (86609304).

Almost surely, 2^1142535541 is an apocalyptic number.

It is an amenable number.

1142535541 is a deficient number, since it is larger than the sum of its proper divisors (243213323).

1142535541 is a wasteful number, since it uses less digits than its factorization.

1142535541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22140.

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

The square root of 1142535541 is about 33801.4132988548. The cubic root of 1142535541 is about 1045.4178379896.

Adding to 1142535541 its reverse (1455352411), we get a palindrome (2597887952).

The spelling of 1142535541 in words is "one billion, one hundred forty-two million, five hundred thirty-five thousand, five hundred forty-one".