134431143 has 16 divisors (see below), whose sum is σ = 223470336. Its totient is φ = 69834240.

The previous prime is 134431127. The next prime is 134431181. The reversal of 134431143 is 341134431.

It is not a de Polignac number, because 134431143 - 2⁴ = 134431127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134431103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290746 + ... + 291207.

It is an arithmetic number, because the mean of its divisors is an integer number (13966896).

Almost surely, 2^134431143 is an apocalyptic number.

134431143 is a deficient number, since it is larger than the sum of its proper divisors (89039193).

134431143 is a wasteful number, since it uses less digits than its factorization.

134431143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581974.

The product of its digits is 1728, while the sum is 24.

The square root of 134431143 is about 11594.4444886333. Note that the first 4 decimals coincide. The cubic root of 134431143 is about 512.2712274999.

Adding to 134431143 its reverse (341134431), we get a palindrome (475565574).

The spelling of 134431143 in words is "one hundred thirty-four million, four hundred thirty-one thousand, one hundred forty-three".