134043985 has 4 divisors (see below), whose sum is σ = 160852788. Its totient is φ = 107235184.

The previous prime is 134043983. The next prime is 134044037. The reversal of 134043985 is 589340431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91546624 + 42497361 = 9568^2 + 6519^2 .

It is a cyclic number.

It is not a de Polignac number, because 134043985 - 2¹ = 134043983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134043983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13404394 + ... + 13404403.

It is an arithmetic number, because the mean of its divisors is an integer number (40213197).

Almost surely, 2^134043985 is an apocalyptic number.

It is an amenable number.

134043985 is a deficient number, since it is larger than the sum of its proper divisors (26808803).

134043985 is an equidigital number, since it uses as much as digits as its factorization.

134043985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26808802.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 134043985 is about 11577.7366095451. The cubic root of 134043985 is about 511.7789789540.

The spelling of 134043985 in words is "one hundred thirty-four million, forty-three thousand, nine hundred eighty-five".