134897143 has 8 divisors (see below), whose sum is σ = 136465056. Its totient is φ = 133334400.

The previous prime is 134897123. The next prime is 134897167. The reversal of 134897143 is 341798431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134897143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134897096 and 134897105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134897123) 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, 77523 + ... + 79243.

It is an arithmetic number, because the mean of its divisors is an integer number (17058132).

Almost surely, 2^134897143 is an apocalyptic number.

134897143 is a deficient number, since it is larger than the sum of its proper divisors (1567913).

134897143 is a wasteful number, since it uses less digits than its factorization.

134897143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585.

The product of its digits is 72576, while the sum is 40.

The square root of 134897143 is about 11614.5229346711. The cubic root of 134897143 is about 512.8624672004.

The spelling of 134897143 in words is "one hundred thirty-four million, eight hundred ninety-seven thousand, one hundred forty-three".