142341505 has 4 divisors (see below), whose sum is σ = 170809812. Its totient is φ = 113873200.

The previous prime is 142341497. The next prime is 142341523. The reversal of 142341505 is 505143241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505143241 = 2099 ⋅240659.

It can be written as a sum of positive squares in 2 ways, for example, as 38056561 + 104284944 = 6169^2 + 10212^2 .

It is not a de Polignac number, because 142341505 - 2³ = 142341497 is a prime.

It is a super-2 number, since 2×142341505² = 40522208091330050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142341505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14234146 + ... + 14234155.

It is an arithmetic number, because the mean of its divisors is an integer number (42702453).

Almost surely, 2^142341505 is an apocalyptic number.

It is an amenable number.

142341505 is a deficient number, since it is larger than the sum of its proper divisors (28468307).

142341505 is an equidigital number, since it uses as much as digits as its factorization.

142341505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28468306.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 142341505 is about 11930.6959143212. The cubic root of 142341505 is about 522.1282414670.

Adding to 142341505 its reverse (505143241), we get a palindrome (647484746).

The spelling of 142341505 in words is "one hundred forty-two million, three hundred forty-one thousand, five hundred five".