142006156 has 24 divisors (see below), whose sum is σ = 261450000. Its totient is φ = 67389504.

The previous prime is 142006147. The next prime is 142006159. The reversal of 142006156 is 651600241.

It is a self number, because there is not a number n which added to its sum of digits gives 142006156.

It is not an unprimeable number, because it can be changed into a prime (142006159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3531 + ... + 17218.

It is an arithmetic number, because the mean of its divisors is an integer number (10893750).

Almost surely, 2^142006156 is an apocalyptic number.

It is an amenable number.

142006156 is a deficient number, since it is larger than the sum of its proper divisors (119443844).

142006156 is a wasteful number, since it uses less digits than its factorization.

142006156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20841 (or 20839 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 142006156 is about 11916.6335850357. The cubic root of 142006156 is about 521.7178836006.

Adding to 142006156 its reverse (651600241), we get a palindrome (793606397).

The spelling of 142006156 in words is "one hundred forty-two million, six thousand, one hundred fifty-six".