1140142142 has 4 divisors (see below), whose sum is σ = 1710213216. Its totient is φ = 570071070.

The previous prime is 1140142127. The next prime is 1140142147. The reversal of 1140142142 is 2412410411.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140142147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285035534 + ... + 285035537.

It is an arithmetic number, because the mean of its divisors is an integer number (427553304).

Almost surely, 2^1140142142 is an apocalyptic number.

1140142142 is a deficient number, since it is larger than the sum of its proper divisors (570071074).

1140142142 is an equidigital number, since it uses as much as digits as its factorization.

1140142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570071073.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1140142142 is about 33765.9909080128. The cubic root of 1140142142 is about 1044.6873424966.

Adding to 1140142142 its reverse (2412410411), we get a palindrome (3552552553).

The spelling of 1140142142 in words is "one billion, one hundred forty million, one hundred forty-two thousand, one hundred forty-two".