142242413 has 4 divisors (see below), whose sum is σ = 143362560. Its totient is φ = 141122268.

The previous prime is 142242377. The next prime is 142242433. The reversal of 142242413 is 314242241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142242413 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 (142242433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559883 + ... + 560136.

It is an arithmetic number, because the mean of its divisors is an integer number (35840640).

Almost surely, 2^142242413 is an apocalyptic number.

It is an amenable number.

142242413 is a deficient number, since it is larger than the sum of its proper divisors (1120147).

142242413 is a wasteful number, since it uses less digits than its factorization.

142242413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120146.

The product of its digits is 1536, while the sum is 23.

The square root of 142242413 is about 11926.5423740496. The cubic root of 142242413 is about 522.0070523066.

Adding to 142242413 its reverse (314242241), we get a palindrome (456484654).

The spelling of 142242413 in words is "one hundred forty-two million, two hundred forty-two thousand, four hundred thirteen".