142100029 has 4 divisors (see below), whose sum is σ = 147000060. Its totient is φ = 137200000.

The previous prime is 142100011. The next prime is 142100051. The reversal of 142100029 is 920001241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49420900 + 92679129 = 7030^2 + 9627^2 .

It is a cyclic number.

It is not a de Polignac number, because 142100029 - 2¹¹ = 142097981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142099979 and 142100015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142100429) 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 3 ways as a sum of consecutive naturals, for example, 2449972 + ... + 2450029.

It is an arithmetic number, because the mean of its divisors is an integer number (36750015).

Almost surely, 2^142100029 is an apocalyptic number.

It is an amenable number.

142100029 is a deficient number, since it is larger than the sum of its proper divisors (4900031).

142100029 is an equidigital number, since it uses as much as digits as its factorization.

142100029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900030.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 142100029 is about 11920.5716725332. The cubic root of 142100029 is about 521.8328186066.

The spelling of 142100029 in words is "one hundred forty-two million, one hundred thousand, twenty-nine".