134109787 has 8 divisors (see below), whose sum is σ = 162284256. Its totient is φ = 108189312.

The previous prime is 134109761. The next prime is 134109797. The reversal of 134109787 is 787901431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-134109787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134109797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563368 + ... + 563605.

It is an arithmetic number, because the mean of its divisors is an integer number (20285532).

Almost surely, 2^134109787 is an apocalyptic number.

134109787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

134109787 is a deficient number, since it is larger than the sum of its proper divisors (28174469).

134109787 is a wasteful number, since it uses less digits than its factorization.

134109787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126997.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 134109787 is about 11580.5780080271. The cubic root of 134109787 is about 511.8627091101.

The spelling of 134109787 in words is "one hundred thirty-four million, one hundred nine thousand, seven hundred eighty-seven".