134243438 has 12 divisors (see below), whose sum is σ = 234241272. Its totient is φ = 57532860.

The previous prime is 134243381. The next prime is 134243449. The reversal of 134243438 is 834342431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 684818 + ... + 685013.

It is an arithmetic number, because the mean of its divisors is an integer number (19520106).

Almost surely, 2^134243438 is an apocalyptic number.

134243438 is a deficient number, since it is larger than the sum of its proper divisors (99997834).

134243438 is a wasteful number, since it uses less digits than its factorization.

134243438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369847 (or 1369840 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 134243438 is about 11586.3470515948. The cubic root of 134243438 is about 512.0326898684.

Adding to 134243438 its reverse (834342431), we get a palindrome (968585869).

The spelling of 134243438 in words is "one hundred thirty-four million, two hundred forty-three thousand, four hundred thirty-eight".