142214533 has 4 divisors (see below), whose sum is σ = 142257708. Its totient is φ = 142171360.

The previous prime is 142214509. The next prime is 142214539. The reversal of 142214533 is 335412241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70862724 + 71351809 = 8418^2 + 8447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142214533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142214498 and 142214507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142214539) 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 3 ways as a sum of consecutive naturals, for example, 16198 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (35564427).

Almost surely, 2^142214533 is an apocalyptic number.

It is an amenable number.

142214533 is a deficient number, since it is larger than the sum of its proper divisors (43175).

142214533 is an equidigital number, since it uses as much as digits as its factorization.

142214533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43174.

The product of its digits is 2880, while the sum is 25.

The square root of 142214533 is about 11925.3734951992. The cubic root of 142214533 is about 521.9729450215.

Adding to 142214533 its reverse (335412241), we get a palindrome (477626774).

The spelling of 142214533 in words is "one hundred forty-two million, two hundred fourteen thousand, five hundred thirty-three".