134439885 has 32 divisors (see below), whose sum is σ = 240564480. Its totient is φ = 71233344.

The previous prime is 134439863. The next prime is 134439923. The reversal of 134439885 is 588934431.

134439885 is a `hidden beast` number, since 134 + 439 + 8 + 85 = 666.

It is not a de Polignac number, because 134439885 - 2⁹ = 134439373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 134439885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18024 + ... + 24366.

It is an arithmetic number, because the mean of its divisors is an integer number (7517640).

Almost surely, 2^134439885 is an apocalyptic number.

134439885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134439885 is a deficient number, since it is larger than the sum of its proper divisors (106124595).

134439885 is a wasteful number, since it uses less digits than its factorization.

134439885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6514 (or 6508 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 134439885 is about 11594.8214733992. The cubic root of 134439885 is about 512.2823315191.

The spelling of 134439885 in words is "one hundred thirty-four million, four hundred thirty-nine thousand, eight hundred eighty-five".