1142112140 has 36 divisors (see below), whose sum is σ = 2597130144. Its totient is φ = 421701696.

The previous prime is 1142112107. The next prime is 1142112151. The reversal of 1142112140 is 412112411.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165572 + ... + 172331.

It is an arithmetic number, because the mean of its divisors is an integer number (72142504).

Almost surely, 2^1142112140 is an apocalyptic number.

1142112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142112140 is an abundant number, since it is smaller than the sum of its proper divisors (1455018004).

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

1142112140 is a wasteful number, since it uses less digits than its factorization.

1142112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337938 (or 337923 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1142112140 is about 33795.1496519841. The cubic root of 1142112140 is about 1045.2886849990.

Adding to 1142112140 its reverse (412112411), we get a palindrome (1554224551).

The spelling of 1142112140 in words is "one billion, one hundred forty-two million, one hundred twelve thousand, one hundred forty".