142043213 has 4 divisors (see below), whose sum is σ = 152969628. Its totient is φ = 131116800.

The previous prime is 142043203. The next prime is 142043261. The reversal of 142043213 is 312340241.

142043213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20448484 + 121594729 = 4522^2 + 11027^2 .

It is a cyclic number.

It is not a de Polignac number, because 142043213 - 2¹⁶ = 141977677 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 (142043203) 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, 5463188 + ... + 5463213.

It is an arithmetic number, because the mean of its divisors is an integer number (38242407).

Almost surely, 2^142043213 is an apocalyptic number.

142043213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142043213 is a deficient number, since it is larger than the sum of its proper divisors (10926415).

142043213 is a wasteful number, since it uses less digits than its factorization.

142043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10926414.

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

The square root of 142043213 is about 11918.1883270907. The cubic root of 142043213 is about 521.7632610187.

Adding to 142043213 its reverse (312340241), we get a palindrome (454383454).

The spelling of 142043213 in words is "one hundred forty-two million, forty-three thousand, two hundred thirteen".