142555213 has 16 divisors (see below), whose sum is σ = 151573680. Its totient is φ = 133858816.

The previous prime is 142555211. The next prime is 142555229. The reversal of 142555213 is 312555241.

It can be written as a sum of positive squares in 8 ways, for example, as 35784324 + 106770889 = 5982^2 + 10333^2 .

It is a cyclic number.

It is not a de Polignac number, because 142555213 - 2¹ = 142555211 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 (142555211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210231 + ... + 210907.

It is an arithmetic number, because the mean of its divisors is an integer number (9473355).

Almost surely, 2^142555213 is an apocalyptic number.

It is an amenable number.

142555213 is a deficient number, since it is larger than the sum of its proper divisors (9018467).

142555213 is a wasteful number, since it uses less digits than its factorization.

142555213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its digits is 6000, while the sum is 28.

The square root of 142555213 is about 11939.6487804290. The cubic root of 142555213 is about 522.3894142620.

Adding to 142555213 its sum of digits (28), we get a palindrome (142555241).

The spelling of 142555213 in words is "one hundred forty-two million, five hundred fifty-five thousand, two hundred thirteen".