134886439 has 4 divisors (see below), whose sum is σ = 136786320. Its totient is φ = 132986560.

The previous prime is 134886419. The next prime is 134886443. The reversal of 134886439 is 934688431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934688431 = 23561 ⋅39671.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134886439 is a prime.

It is a super-2 number, since 2×134886439² = 36388702852201442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134886419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949834 + ... + 949975.

It is an arithmetic number, because the mean of its divisors is an integer number (34196580).

Almost surely, 2^134886439 is an apocalyptic number.

134886439 is a deficient number, since it is larger than the sum of its proper divisors (1899881).

134886439 is an equidigital number, since it uses as much as digits as its factorization.

134886439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899880.

The product of its digits is 497664, while the sum is 46.

The square root of 134886439 is about 11614.0621231333. The cubic root of 134886439 is about 512.8489017412.

It can be divided in two parts, 1348864 and 39, that added together give a triangular number (1348903 = T₁₆₄₂).

The spelling of 134886439 in words is "one hundred thirty-four million, eight hundred eighty-six thousand, four hundred thirty-nine".