134691143 has 8 divisors (see below), whose sum is σ = 138897408. Its totient is φ = 130540824.

The previous prime is 134691127. The next prime is 134691157. The reversal of 134691143 is 341196431.

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 134691143 - 2⁴ = 134691127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134691163) 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, 9071 + ... + 18752.

It is an arithmetic number, because the mean of its divisors is an integer number (17362176).

Almost surely, 2^134691143 is an apocalyptic number.

134691143 is a deficient number, since it is larger than the sum of its proper divisors (4206265).

134691143 is a wasteful number, since it uses less digits than its factorization.

134691143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27973.

The product of its digits is 7776, while the sum is 32.

The square root of 134691143 is about 11605.6513388952. The cubic root of 134691143 is about 512.6012719164.

The spelling of 134691143 in words is "one hundred thirty-four million, six hundred ninety-one thousand, one hundred forty-three".