1142210142 has 12 divisors (see below), whose sum is σ = 2474788680. Its totient is φ = 380736708.

The previous prime is 1142210141. The next prime is 1142210143. The reversal of 1142210142 is 2410122411.

It is an interprime number because it is at equal distance from previous prime (1142210141) and next prime (1142210143).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 63456119 = 1142210142 / (1 + 1 + 4 + 2 + 2 + 1 + 0 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142210141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31728042 + ... + 31728077.

It is an arithmetic number, because the mean of its divisors is an integer number (206232390).

Almost surely, 2^1142210142 is an apocalyptic number.

1142210142 is an abundant number, since it is smaller than the sum of its proper divisors (1332578538).

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

1142210142 is a wasteful number, since it uses less digits than its factorization.

1142210142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63456127 (or 63456124 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1142210142 is about 33796.5995626779. The cubic root of 1142210142 is about 1045.3185820783.

Adding to 1142210142 its reverse (2410122411), we get a palindrome (3552332553).

The spelling of 1142210142 in words is "one billion, one hundred forty-two million, two hundred ten thousand, one hundred forty-two".