143102142 has 12 divisors (see below), whose sum is σ = 310054680. Its totient is φ = 47700708.

The previous prime is 143102131. The next prime is 143102143. The reversal of 143102142 is 241201341.

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: 7950119 = 143102142 / (1 + 4 + 3 + 1 + 0 + 2 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143102143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3975042 + ... + 3975077.

It is an arithmetic number, because the mean of its divisors is an integer number (25837890).

Almost surely, 2^143102142 is an apocalyptic number.

143102142 is an abundant number, since it is smaller than the sum of its proper divisors (166952538).

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

143102142 is a wasteful number, since it uses less digits than its factorization.

143102142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950127 (or 7950124 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 143102142 is about 11962.5307523116. The cubic root of 143102142 is about 523.0566301539.

Adding to 143102142 its reverse (241201341), we get a palindrome (384303483).

The spelling of 143102142 in words is "one hundred forty-three million, one hundred two thousand, one hundred forty-two".