134398787 has 8 divisors (see below), whose sum is σ = 142412256. Its totient is φ = 126397312.

The previous prime is 134398783. The next prime is 134398819. The reversal of 134398787 is 787893431.

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

It is not a de Polignac number, because 134398787 - 2² = 134398783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134398783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31538 + ... + 35544.

It is an arithmetic number, because the mean of its divisors is an integer number (17801532).

Almost surely, 2^134398787 is an apocalyptic number.

134398787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

134398787 is a deficient number, since it is larger than the sum of its proper divisors (8013469).

134398787 is a wasteful number, since it uses less digits than its factorization.

134398787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997.

The product of its digits is 1016064, while the sum is 50.

The square root of 134398787 is about 11593.0490812383. The cubic root of 134398787 is about 512.2301249759.

The spelling of 134398787 in words is "one hundred thirty-four million, three hundred ninety-eight thousand, seven hundred eighty-seven".