142341613 has 4 divisors (see below), whose sum is σ = 142389180. Its totient is φ = 142294048.

The previous prime is 142341607. The next prime is 142341671. The reversal of 142341613 is 316143241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316143241 = 431 ⋅733511.

It can be written as a sum of positive squares in 2 ways, for example, as 111450249 + 30891364 = 10557^2 + 5558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142341613 is a prime.

It is a super-2 number, since 2×142341613² = 40522269582883538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142141613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18970 + ... + 25387.

It is an arithmetic number, because the mean of its divisors is an integer number (35597295).

Almost surely, 2^142341613 is an apocalyptic number.

It is an amenable number.

142341613 is a deficient number, since it is larger than the sum of its proper divisors (47567).

142341613 is an equidigital number, since it uses as much as digits as its factorization.

142341613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47566.

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

The square root of 142341613 is about 11930.7004404603. The cubic root of 142341613 is about 522.1283735199.

Adding to 142341613 its reverse (316143241), we get a palindrome (458484854).

The spelling of 142341613 in words is "one hundred forty-two million, three hundred forty-one thousand, six hundred thirteen".