1142320134 has 32 divisors (see below), whose sum is σ = 2435083776. Its totient is φ = 355996800.

The previous prime is 1142320103. The next prime is 1142320159. The reversal of 1142320134 is 4310232411.

It is a self number, because there is not a number n which added to its sum of digits gives 1142320134.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21682 + ... + 52485.

It is an arithmetic number, because the mean of its divisors is an integer number (76096368).

Almost surely, 2^1142320134 is an apocalyptic number.

1142320134 is an abundant number, since it is smaller than the sum of its proper divisors (1292763642).

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

1142320134 is a wasteful number, since it uses less digits than its factorization.

1142320134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74340.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1142320134 is about 33798.2267878065. The cubic root of 1142320134 is about 1045.3521348625.

Adding to 1142320134 its reverse (4310232411), we get a palindrome (5452552545).

The spelling of 1142320134 in words is "one billion, one hundred forty-two million, three hundred twenty thousand, one hundred thirty-four".