1142305542 has 36 divisors (see below), whose sum is σ = 2879078436. Its totient is φ = 326372760.

The previous prime is 1142305499. The next prime is 1142305547. The reversal of 1142305542 is 2455032411.

1142305542 is a `hidden beast` number, since 114 + 2 + 3 + 0 + 5 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142305547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 646684 + ... + 648447.

It is an arithmetic number, because the mean of its divisors is an integer number (79974401).

Almost surely, 2^1142305542 is an apocalyptic number.

1142305542 is an abundant number, since it is smaller than the sum of its proper divisors (1736772894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142305542 is a wasteful number, since it uses less digits than its factorization.

1142305542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295153 (or 1295143 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1142305542 is about 33798.0109178040. The cubic root of 1142305542 is about 1045.3476837333.

Adding to 1142305542 its reverse (2455032411), we get a palindrome (3597337953).

The spelling of 1142305542 in words is "one billion, one hundred forty-two million, three hundred five thousand, five hundred forty-two".