134439193 has 24 divisors (see below), whose sum is σ = 165491520. Its totient is φ = 108909360.

The previous prime is 134439169. The next prime is 134439197. The reversal of 134439193 is 391934431.

It is not a de Polignac number, because 134439193 - 2¹³ = 134431001 is a prime.

It is a super-2 number, since 2×134439193² = 36147793228982498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134439197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319123 + ... + 319543.

It is an arithmetic number, because the mean of its divisors is an integer number (6895480).

Almost surely, 2^134439193 is an apocalyptic number.

It is an amenable number.

134439193 is a deficient number, since it is larger than the sum of its proper divisors (31052327).

134439193 is an frugal number, since it uses more digits than its factorization.

134439193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 447 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 134439193 is about 11594.7916324529. The cubic root of 134439193 is about 512.2814525638.

The spelling of 134439193 in words is "one hundred thirty-four million, four hundred thirty-nine thousand, one hundred ninety-three".