1210143142 has 16 divisors (see below), whose sum is σ = 1957363632. Its totient is φ = 557808480.

The previous prime is 1210143107. The next prime is 1210143149. The reversal of 1210143142 is 2413410121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210143149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9109 + ... + 50032.

It is an arithmetic number, because the mean of its divisors is an integer number (122335227).

Almost surely, 2^1210143142 is an apocalyptic number.

1210143142 is a deficient number, since it is larger than the sum of its proper divisors (747220490).

1210143142 is a wasteful number, since it uses less digits than its factorization.

1210143142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59943.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1210143142 is about 34787.1117225906. Note that the first 3 decimals coincide. The cubic root of 1210143142 is about 1065.6442550644.

Adding to 1210143142 its reverse (2413410121), we get a palindrome (3623553263).

The spelling of 1210143142 in words is "one billion, two hundred ten million, one hundred forty-three thousand, one hundred forty-two".