134642143 has 2 divisors, whose sum is σ = 134642144. Its totient is φ = 134642142.

The previous prime is 134642129. The next prime is 134642147. The reversal of 134642143 is 341246431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134642143 - 2¹³ = 134633951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134642147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67321071 + 67321072.

It is an arithmetic number, because the mean of its divisors is an integer number (67321072).

Almost surely, 2^134642143 is an apocalyptic number.

134642143 is a deficient number, since it is larger than the sum of its proper divisors (1).

134642143 is an equidigital number, since it uses as much as digits as its factorization.

134642143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 134642143 is about 11603.5401063641. The cubic root of 134642143 is about 512.5391037385.

Adding to 134642143 its reverse (341246431), we get a palindrome (475888574).

The spelling of 134642143 in words is "one hundred thirty-four million, six hundred forty-two thousand, one hundred forty-three".