142353421 has 8 divisors (see below), whose sum is σ = 162909504. Its totient is φ = 121852320.

The previous prime is 142353397. The next prime is 142353433. The reversal of 142353421 is 124353241.

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 142353421 - 2¹⁷ = 142222349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142353451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8035 + ... + 18688.

It is an arithmetic number, because the mean of its divisors is an integer number (20363688).

Almost surely, 2^142353421 is an apocalyptic number.

It is an amenable number.

142353421 is a deficient number, since it is larger than the sum of its proper divisors (20556083).

142353421 is an equidigital number, since it uses as much as digits as its factorization.

142353421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27491.

The product of its digits is 2880, while the sum is 25.

The square root of 142353421 is about 11931.1952879835. The cubic root of 142353421 is about 522.1428109034.

The spelling of 142353421 in words is "one hundred forty-two million, three hundred fifty-three thousand, four hundred twenty-one".