1142535044 has 24 divisors (see below), whose sum is σ = 2295061440. Its totient is φ = 487516896.

The previous prime is 1142535029. The next prime is 1142535047. The reversal of 1142535044 is 4405352411.

It is a junction number, because it is equal to n+sod(n) for n = 1142534998 and 1142535016.

It is not an unprimeable number, because it can be changed into a prime (1142535047) 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, 82682 + ... + 95505.

It is an arithmetic number, because the mean of its divisors is an integer number (95627560).

Almost surely, 2^1142535044 is an apocalyptic number.

1142535044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1142535044 is an abundant number, since it is smaller than the sum of its proper divisors (1152526396).

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

1142535044 is a wasteful number, since it uses less digits than its factorization.

1142535044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178427 (or 178425 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1142535044 is about 33801.4059470904. The cubic root of 1142535044 is about 1045.4176864049.

Adding to 1142535044 its reverse (4405352411), we get a palindrome (5547887455).

The spelling of 1142535044 in words is "one billion, one hundred forty-two million, five hundred thirty-five thousand, forty-four".