142241013 has 24 divisors (see below), whose sum is σ = 211400280. Its totient is φ = 92106240.

The previous prime is 142240999. The next prime is 142241017. The reversal of 142241013 is 310142241.

It can be written as a sum of positive squares in 4 ways, for example, as 106929 + 142134084 = 327^2 + 11922^2 .

It is not a de Polignac number, because 142241013 - 2⁵ = 142240981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142241017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98545 + ... + 99977.

It is an arithmetic number, because the mean of its divisors is an integer number (8808345).

Almost surely, 2^142241013 is an apocalyptic number.

It is an amenable number.

142241013 is a deficient number, since it is larger than the sum of its proper divisors (69159267).

142241013 is a wasteful number, since it uses less digits than its factorization.

142241013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1746 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 142241013 is about 11926.4836812868. The cubic root of 142241013 is about 522.0053397084.

Adding to 142241013 its reverse (310142241), we get a palindrome (452383254).

The spelling of 142241013 in words is "one hundred forty-two million, two hundred forty-one thousand, thirteen".