134681507 has 4 divisors (see below), whose sum is σ = 134812920. Its totient is φ = 134550096.

The previous prime is 134681501. The next prime is 134681509. The reversal of 134681507 is 705186431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705186431 = 179 ⋅3939589.

It is a cyclic number.

It is not a de Polignac number, because 134681507 - 2⁸ = 134681251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134681501) 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 3 ways as a sum of consecutive naturals, for example, 64157 + ... + 66222.

It is an arithmetic number, because the mean of its divisors is an integer number (33703230).

Almost surely, 2^134681507 is an apocalyptic number.

134681507 is a deficient number, since it is larger than the sum of its proper divisors (131413).

134681507 is a wasteful number, since it uses less digits than its factorization.

134681507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131412.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 134681507 is about 11605.2361888934. The cubic root of 134681507 is about 512.5890475450.

The spelling of 134681507 in words is "one hundred thirty-four million, six hundred eighty-one thousand, five hundred seven".