134678019 has 12 divisors (see below), whose sum is σ = 208888584. Its totient is φ = 76958784.

The previous prime is 134678017. The next prime is 134678081. The reversal of 134678019 is 910876431.

It is not a de Polignac number, because 134678019 - 2¹ = 134678017 is a prime.

It is a super-2 number, since 2×134678019² = 36276337603528722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134678017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457942 + ... + 458235.

It is an arithmetic number, because the mean of its divisors is an integer number (17407382).

Almost surely, 2^134678019 is an apocalyptic number.

134678019 is a deficient number, since it is larger than the sum of its proper divisors (74210565).

134678019 is an equidigital number, since it uses as much as digits as its factorization.

134678019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916194 (or 916187 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 134678019 is about 11605.0859109272. The cubic root of 134678019 is about 512.5846224732.

The spelling of 134678019 in words is "one hundred thirty-four million, six hundred seventy-eight thousand, nineteen".