142273605 has 8 divisors (see below), whose sum is σ = 227637792. Its totient is φ = 75879248.

The previous prime is 142273583. The next prime is 142273613. The reversal of 142273605 is 506372241.

142273605 is nontrivially palindromic in base 9.

142273605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 142273605 - 2¹⁴ = 142257221 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4742439 + ... + 4742468.

It is an arithmetic number, because the mean of its divisors is an integer number (28454724).

Almost surely, 2^142273605 is an apocalyptic number.

142273605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142273605 is a deficient number, since it is larger than the sum of its proper divisors (85364187).

142273605 is an equidigital number, since it uses as much as digits as its factorization.

142273605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484915.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 142273605 is about 11927.8499739056. The cubic root of 142273605 is about 522.0452060789.

The spelling of 142273605 in words is "one hundred forty-two million, two hundred seventy-three thousand, six hundred five".