142006122 has 20 divisors (see below), whose sum is σ = 318199266. Its totient is φ = 47335320.

The previous prime is 142006103. The next prime is 142006141. The reversal of 142006122 is 221600241.

It is an interprime number because it is at equal distance from previous prime (142006103) and next prime (142006141).

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 61168041 = 8991^2 + 7821^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142006095 and 142006104.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 438129 + ... + 438452.

Almost surely, 2^142006122 is an apocalyptic number.

142006122 is an abundant number, since it is smaller than the sum of its proper divisors (176193144).

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

142006122 is an equidigital number, since it uses as much as digits as its factorization.

142006122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876595 (or 876586 counting only the distinct ones).

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

The square root of 142006122 is about 11916.6321584582. The cubic root of 142006122 is about 521.7178419629.

Adding to 142006122 its reverse (221600241), we get a palindrome (363606363).

The spelling of 142006122 in words is "one hundred forty-two million, six thousand, one hundred twenty-two".