142236030 has 32 divisors (see below), whose sum is σ = 341789184. Its totient is φ = 37882656.

The previous prime is 142236023. The next prime is 142236043. The reversal of 142236030 is 30632241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142235988 and 142236006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26559 + ... + 31461.

It is an arithmetic number, because the mean of its divisors is an integer number (10680912).

Almost surely, 2^142236030 is an apocalyptic number.

142236030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142236030 is an abundant number, since it is smaller than the sum of its proper divisors (199553154).

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

142236030 is a wasteful number, since it uses less digits than its factorization.

142236030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 142236030 is about 11926.2747746310. The cubic root of 142236030 is about 521.9992439912. Note that the first 3 decimals are identical.

Adding to 142236030 its reverse (30632241), we get a palindrome (172868271).

The spelling of 142236030 in words is "one hundred forty-two million, two hundred thirty-six thousand, thirty".