142743213 has 12 divisors (see below), whose sum is σ = 206666460. Its totient is φ = 94939776.

The previous prime is 142743193. The next prime is 142743241. The reversal of 142743213 is 312347241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78535044 + 64208169 = 8862^2 + 8013^2 .

It is not a de Polignac number, because 142743213 - 2⁹ = 142742701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142742213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14418 + ... + 22211.

It is an arithmetic number, because the mean of its divisors is an integer number (17222205).

Almost surely, 2^142743213 is an apocalyptic number.

It is an amenable number.

142743213 is a deficient number, since it is larger than the sum of its proper divisors (63923247).

142743213 is a wasteful number, since it uses less digits than its factorization.

142743213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37068 (or 37065 counting only the distinct ones).

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

The square root of 142743213 is about 11947.5191148623. The cubic root of 142743213 is about 522.6189535566.

The spelling of 142743213 in words is "one hundred forty-two million, seven hundred forty-three thousand, two hundred thirteen".