142620133 has 2 divisors, whose sum is σ = 142620134. Its totient is φ = 142620132.

The previous prime is 142620109. The next prime is 142620161. The reversal of 142620133 is 331026241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142491969 + 128164 = 11937^2 + 358^2 .

It is a cyclic number.

It is not a de Polignac number, because 142620133 - 2¹³ = 142611941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142620433) 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 as a sum of consecutive naturals, namely, 71310066 + 71310067.

It is an arithmetic number, because the mean of its divisors is an integer number (71310067).

Almost surely, 2^142620133 is an apocalyptic number.

It is an amenable number.

142620133 is a deficient number, since it is larger than the sum of its proper divisors (1).

142620133 is an equidigital number, since it uses as much as digits as its factorization.

142620133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 142620133 is about 11942.3671439125. The cubic root of 142620133 is about 522.4687013753.

Adding to 142620133 its reverse (331026241), we get a palindrome (473646374).

The spelling of 142620133 in words is "one hundred forty-two million, six hundred twenty thousand, one hundred thirty-three".