134217939 has 4 divisors (see below), whose sum is σ = 178957256. Its totient is φ = 89478624.

The previous prime is 134217931. The next prime is 134217943. The reversal of 134217939 is 939712431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 134217939 - 2³ = 134217931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134217897 and 134217906.

It is not an unprimeable number, because it can be changed into a prime (134217931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22369654 + ... + 22369659.

It is an arithmetic number, because the mean of its divisors is an integer number (44739314).

Almost surely, 2^134217939 is an apocalyptic number.

134217939 is a deficient number, since it is larger than the sum of its proper divisors (44739317).

134217939 is an equidigital number, since it uses as much as digits as its factorization.

134217939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44739316.

The product of its digits is 40824, while the sum is 39.

The square root of 134217939 is about 11585.2466093735. The cubic root of 134217939 is about 512.0002683002. Note that the first 3 decimals are identical.

The spelling of 134217939 in words is "one hundred thirty-four million, two hundred seventeen thousand, nine hundred thirty-nine".