142112213 has 4 divisors (see below), whose sum is σ = 142856448. Its totient is φ = 141367980.

The previous prime is 142112207. The next prime is 142112219. The reversal of 142112213 is 312211241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312211241 = 271 ⋅1152071.

It is an interprime number because it is at equal distance from previous prime (142112207) and next prime (142112219).

It is a cyclic number.

It is not a de Polignac number, because 142112213 - 2⁶ = 142112149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142112191 and 142112200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142112219) 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, 371831 + ... + 372212.

It is an arithmetic number, because the mean of its divisors is an integer number (35714112).

Almost surely, 2^142112213 is an apocalyptic number.

It is an amenable number.

142112213 is a deficient number, since it is larger than the sum of its proper divisors (744235).

142112213 is an equidigital number, since it uses as much as digits as its factorization.

142112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744234.

The product of its digits is 96, while the sum is 17.

The square root of 142112213 is about 11921.0827108950. The cubic root of 142112213 is about 521.8477325828.

Adding to 142112213 its reverse (312211241), we get a palindrome (454323454).

The spelling of 142112213 in words is "one hundred forty-two million, one hundred twelve thousand, two hundred thirteen".