142437213 has 24 divisors (see below), whose sum is σ = 212704128. Its totient is φ = 91795392.

The previous prime is 142437193. The next prime is 142437221. The reversal of 142437213 is 312734241.

It is a happy number.

142437213 is a `hidden beast` number, since 14 + 2 + 437 + 213 = 666.

It is not a de Polignac number, because 142437213 - 2⁵ = 142437181 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 (142437233) 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 23 ways as a sum of consecutive naturals, for example, 33081 + ... + 37137.

It is an arithmetic number, because the mean of its divisors is an integer number (8862672).

Almost surely, 2^142437213 is an apocalyptic number.

It is an amenable number.

142437213 is a deficient number, since it is larger than the sum of its proper divisors (70266915).

142437213 is a wasteful number, since it uses less digits than its factorization.

142437213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193 (or 4190 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 142437213 is about 11934.7062385297. The cubic root of 142437213 is about 522.2452386231.

The spelling of 142437213 in words is "one hundred forty-two million, four hundred thirty-seven thousand, two hundred thirteen".