134142439 has 2 divisors, whose sum is σ = 134142440. Its totient is φ = 134142438.

The previous prime is 134142433. The next prime is 134142457. The reversal of 134142439 is 934241431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134142439 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134142439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134142433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67071219 + 67071220.

It is an arithmetic number, because the mean of its divisors is an integer number (67071220).

Almost surely, 2^134142439 is an apocalyptic number.

134142439 is a deficient number, since it is larger than the sum of its proper divisors (1).

134142439 is an equidigital number, since it uses as much as digits as its factorization.

134142439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 134142439 is about 11581.9876964190. The cubic root of 134142439 is about 511.9042471795.

The spelling of 134142439 in words is "one hundred thirty-four million, one hundred forty-two thousand, four hundred thirty-nine".