134638005 has 16 divisors (see below), whose sum is σ = 221243904. Its totient is φ = 69865920.

The previous prime is 134638003. The next prime is 134638057. The reversal of 134638005 is 500836431.

It is not a de Polignac number, because 134638005 - 2¹ = 134638003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134638003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120741 + ... + 121850.

It is an arithmetic number, because the mean of its divisors is an integer number (13827744).

Almost surely, 2^134638005 is an apocalyptic number.

134638005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134638005 is a deficient number, since it is larger than the sum of its proper divisors (86605899).

134638005 is a wasteful number, since it uses less digits than its factorization.

134638005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242636.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 134638005 is about 11603.3617973413. The cubic root of 134638005 is about 512.5338530087.

The spelling of 134638005 in words is "one hundred thirty-four million, six hundred thirty-eight thousand, five".