142400213 has 2 divisors, whose sum is σ = 142400214. Its totient is φ = 142400212.

The previous prime is 142400197. The next prime is 142400233. The reversal of 142400213 is 312004241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121396324 + 21003889 = 11018^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 142400213 - 2⁴ = 142400197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142400191 and 142400200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142400233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71200106 + 71200107.

It is an arithmetic number, because the mean of its divisors is an integer number (71200107).

Almost surely, 2^142400213 is an apocalyptic number.

It is an amenable number.

142400213 is a deficient number, since it is larger than the sum of its proper divisors (1).

142400213 is an equidigital number, since it uses as much as digits as its factorization.

142400213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142400213 is about 11933.1560368580. The cubic root of 142400213 is about 522.2000146098.

Adding to 142400213 its reverse (312004241), we get a palindrome (454404454).

The spelling of 142400213 in words is "one hundred forty-two million, four hundred thousand, two hundred thirteen".