142799246 has 4 divisors (see below), whose sum is σ = 214198872. Its totient is φ = 71399622.

The previous prime is 142799233. The next prime is 142799257. The reversal of 142799246 is 642997241.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142799197 and 142799206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35699810 + ... + 35699813.

It is an arithmetic number, because the mean of its divisors is an integer number (53549718).

Almost surely, 2^142799246 is an apocalyptic number.

142799246 is a deficient number, since it is larger than the sum of its proper divisors (71399626).

142799246 is an equidigital number, since it uses as much as digits as its factorization.

142799246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71399625.

The product of its digits is 217728, while the sum is 44.

The square root of 142799246 is about 11949.8638485968. The cubic root of 142799246 is about 522.6873282656.

The spelling of 142799246 in words is "one hundred forty-two million, seven hundred ninety-nine thousand, two hundred forty-six".