134985239 has 4 divisors (see below), whose sum is σ = 135692160. Its totient is φ = 134278320.

The previous prime is 134985233. The next prime is 134985283. The reversal of 134985239 is 932589431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932589431 = 53 ⋅17596027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134985239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134985239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134985233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353174 + ... + 353555.

It is an arithmetic number, because the mean of its divisors is an integer number (33923040).

Almost surely, 2^134985239 is an apocalyptic number.

134985239 is a deficient number, since it is larger than the sum of its proper divisors (706921).

134985239 is an equidigital number, since it uses as much as digits as its factorization.

134985239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706920.

The product of its digits is 233280, while the sum is 44.

The square root of 134985239 is about 11618.3148089557. The cubic root of 134985239 is about 512.9740863179.

The spelling of 134985239 in words is "one hundred thirty-four million, nine hundred eighty-five thousand, two hundred thirty-nine".