142352605 has 8 divisors (see below), whose sum is σ = 171264600. Its totient is φ = 113587776.

The previous prime is 142352599. The next prime is 142352629. The reversal of 142352605 is 506253241.

It can be written as a sum of positive squares in 4 ways, for example, as 34234201 + 108118404 = 5851^2 + 10398^2 .

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 142352605 - 2³ = 142352597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34650 + ... + 38539.

It is an arithmetic number, because the mean of its divisors is an integer number (21408075).

Almost surely, 2^142352605 is an apocalyptic number.

It is an amenable number.

142352605 is a deficient number, since it is larger than the sum of its proper divisors (28911995).

142352605 is an equidigital number, since it uses as much as digits as its factorization.

142352605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73583.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 142352605 is about 11931.1610918636. The cubic root of 142352605 is about 522.1418132237.

The spelling of 142352605 in words is "one hundred forty-two million, three hundred fifty-two thousand, six hundred five".