142606321 has 8 divisors (see below), whose sum is σ = 167537664. Its totient is φ = 119669520.

The previous prime is 142606309. The next prime is 142606327. The reversal of 142606321 is 123606241.

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 142606321 - 2⁷ = 142606193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142606327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498481 + ... + 498766.

It is an arithmetic number, because the mean of its divisors is an integer number (20942208).

Almost surely, 2^142606321 is an apocalyptic number.

142606321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142606321 is a deficient number, since it is larger than the sum of its proper divisors (24931343).

142606321 is a wasteful number, since it uses less digits than its factorization.

142606321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997271.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 142606321 is about 11941.7888525966. The cubic root of 142606321 is about 522.4518347274.

The spelling of 142606321 in words is "one hundred forty-two million, six hundred six thousand, three hundred twenty-one".