134843819 has 8 divisors (see below), whose sum is σ = 149878512. Its totient is φ = 120271840.

The previous prime is 134843809. The next prime is 134843827. The reversal of 134843819 is 918348431.

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

It is not a de Polignac number, because 134843819 - 2⁴ = 134843803 is a prime.

It is a super-2 number, since 2×134843819² = 36365711045009522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134843809) 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, 115064 + ... + 116229.

It is an arithmetic number, because the mean of its divisors is an integer number (18734814).

Almost surely, 2^134843819 is an apocalyptic number.

134843819 is a deficient number, since it is larger than the sum of its proper divisors (15034693).

134843819 is a wasteful number, since it uses less digits than its factorization.

134843819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231357.

The product of its digits is 82944, while the sum is 41.

The square root of 134843819 is about 11612.2271335003. The cubic root of 134843819 is about 512.7948811818.

The spelling of 134843819 in words is "one hundred thirty-four million, eight hundred forty-three thousand, eight hundred nineteen".