1142138084 has 12 divisors (see below), whose sum is σ = 2063217408. Its totient is φ = 552647400.

The previous prime is 1142138027. The next prime is 1142138087. The reversal of 1142138084 is 4808312411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142138084.

It is not an unprimeable number, because it can be changed into a prime (1142138087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4605272 + ... + 4605519.

It is an arithmetic number, because the mean of its divisors is an integer number (171934784).

Almost surely, 2^1142138084 is an apocalyptic number.

It is an amenable number.

1142138084 is a deficient number, since it is larger than the sum of its proper divisors (921079324).

1142138084 is a wasteful number, since it uses less digits than its factorization.

1142138084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210826 (or 9210824 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1142138084 is about 33795.5334918684. The cubic root of 1142138084 is about 1045.2965997981.

The spelling of 1142138084 in words is "one billion, one hundred forty-two million, one hundred thirty-eight thousand, eighty-four".