1142535542 has 32 divisors (see below), whose sum is σ = 1790411040. Its totient is φ = 546416640.

The previous prime is 1142535517. The next prime is 1142535547. The reversal of 1142535542 is 2455352411.

It is a junction number, because it is equal to n+sod(n) for n = 1142535499 and 1142535508.

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, 864242 + ... + 865562.

It is an arithmetic number, because the mean of its divisors is an integer number (55950345).

Almost surely, 2^1142535542 is an apocalyptic number.

1142535542 is a deficient number, since it is larger than the sum of its proper divisors (647875498).

1142535542 is a wasteful number, since it uses less digits than its factorization.

1142535542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568.

The product of its digits is 24000, while the sum is 32.

The square root of 1142535542 is about 33801.4133136471. The cubic root of 1142535542 is about 1045.4178382946.

Adding to 1142535542 its reverse (2455352411), we get a palindrome (3597887953).

The spelling of 1142535542 in words is "one billion, one hundred forty-two million, five hundred thirty-five thousand, five hundred forty-two".