142243246 has 8 divisors (see below), whose sum is σ = 216370224. Its totient is φ = 70119840.

The previous prime is 142243243. The next prime is 142243279. The reversal of 142243246 is 642342241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142243243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500715 + ... + 500998.

It is an arithmetic number, because the mean of its divisors is an integer number (27046278).

Almost surely, 2^142243246 is an apocalyptic number.

142243246 is a deficient number, since it is larger than the sum of its proper divisors (74126978).

142243246 is a wasteful number, since it uses less digits than its factorization.

142243246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001786.

The product of its digits is 9216, while the sum is 28.

The square root of 142243246 is about 11926.5772961064. The cubic root of 142243246 is about 522.0080712971.

Adding to 142243246 its reverse (642342241), we get a palindrome (784585487).

The spelling of 142243246 in words is "one hundred forty-two million, two hundred forty-three thousand, two hundred forty-six".