1140423142 has 4 divisors (see below), whose sum is σ = 1710634716. Its totient is φ = 570211570.

The previous prime is 1140423113. The next prime is 1140423157. The reversal of 1140423142 is 2413240411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2413240411 = 127 ⋅19001893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285105784 + ... + 285105787.

It is an arithmetic number, because the mean of its divisors is an integer number (427658679).

Almost surely, 2^1140423142 is an apocalyptic number.

1140423142 is a deficient number, since it is larger than the sum of its proper divisors (570211574).

1140423142 is an equidigital number, since it uses as much as digits as its factorization.

1140423142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570211573.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1140423142 is about 33770.1516431301. The cubic root of 1140423142 is about 1044.7731601676.

Adding to 1140423142 its reverse (2413240411), we get a palindrome (3553663553).

The spelling of 1140423142 in words is "one billion, one hundred forty million, four hundred twenty-three thousand, one hundred forty-two".