142013243 has 4 divisors (see below), whose sum is σ = 142639080. Its totient is φ = 141387408.

The previous prime is 142013237. The next prime is 142013269. The reversal of 142013243 is 342310241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142013243 - 2⁴ = 142013227 is a prime.

It is a super-2 number, since 2×142013243² = 40335522374754098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142013213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312578 + ... + 313031.

It is an arithmetic number, because the mean of its divisors is an integer number (35659770).

Almost surely, 2^142013243 is an apocalyptic number.

142013243 is a deficient number, since it is larger than the sum of its proper divisors (625837).

142013243 is an equidigital number, since it uses as much as digits as its factorization.

142013243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625836.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142013243 is about 11916.9309387946. The cubic root of 142013243 is about 521.7265624570.

Adding to 142013243 its reverse (342310241), we get a palindrome (484323484).

The spelling of 142013243 in words is "one hundred forty-two million, thirteen thousand, two hundred forty-three".