134863691 has 8 divisors (see below), whose sum is σ = 142190400. Its totient is φ = 127559880.

The previous prime is 134863667. The next prime is 134863699. The reversal of 134863691 is 196368431.

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

It is a cyclic number.

It is not a de Polignac number, because 134863691 - 2¹⁰ = 134862667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134863699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7136 + ... + 17906.

It is an arithmetic number, because the mean of its divisors is an integer number (17773800).

Almost surely, 2^134863691 is an apocalyptic number.

134863691 is a deficient number, since it is larger than the sum of its proper divisors (7326709).

134863691 is a wasteful number, since it uses less digits than its factorization.

134863691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11449.

The product of its digits is 93312, while the sum is 41.

The square root of 134863691 is about 11613.0827517933. The cubic root of 134863691 is about 512.8200702225.

The spelling of 134863691 in words is "one hundred thirty-four million, eight hundred sixty-three thousand, six hundred ninety-one".