134809951 has 4 divisors (see below), whose sum is σ = 139458600. Its totient is φ = 130161304.

The previous prime is 134809919. The next prime is 134809957. The reversal of 134809951 is 159908431.

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

It is a cyclic number.

It is not a de Polignac number, because 134809951 - 2⁵ = 134809919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134809957) 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, 2324281 + ... + 2324338.

It is an arithmetic number, because the mean of its divisors is an integer number (34864650).

Almost surely, 2^134809951 is an apocalyptic number.

134809951 is a deficient number, since it is larger than the sum of its proper divisors (4648649).

134809951 is an equidigital number, since it uses as much as digits as its factorization.

134809951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648648.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 134809951 is about 11610.7687514652. The cubic root of 134809951 is about 512.7519456054.

The spelling of 134809951 in words is "one hundred thirty-four million, eight hundred nine thousand, nine hundred fifty-one".