134639964 has 18 divisors (see below), whose sum is σ = 340340000. Its totient is φ = 44879976.

The previous prime is 134639963. The next prime is 134640019. The reversal of 134639964 is 469936431.

134639964 is a `hidden beast` number, since 1 + 3 + 4 + 639 + 9 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134639963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1869964 + ... + 1870035.

Almost surely, 2^134639964 is an apocalyptic number.

It is an amenable number.

134639964 is an abundant number, since it is smaller than the sum of its proper divisors (205700036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134639964 is a wasteful number, since it uses less digits than its factorization.

134639964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740009 (or 3740004 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 134639964 is about 11603.4462122251. The cubic root of 134639964 is about 512.5363388074.

The spelling of 134639964 in words is "one hundred thirty-four million, six hundred thirty-nine thousand, nine hundred sixty-four".