134218457 has 8 divisors (see below), whose sum is σ = 136356840. Its totient is φ = 132088320.

The previous prime is 134218433. The next prime is 134218459. The reversal of 134218457 is 754812431.

It can be written as a sum of positive squares in 4 ways, for example, as 839056 + 133379401 = 916^2 + 11549^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 134218457 - 2²⁴ = 117441241 is a prime.

It is a Leyland number of the form 27² + 2²⁷.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134218459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36269 + ... + 39797.

It is an arithmetic number, because the mean of its divisors is an integer number (17044605).

Almost surely, 2^134218457 is an apocalyptic number.

It is an amenable number.

134218457 is a deficient number, since it is larger than the sum of its proper divisors (2138383).

134218457 is an equidigital number, since it uses as much as digits as its factorization.

134218457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123.

The product of its digits is 26880, while the sum is 35.

The square root of 134218457 is about 11585.2689653715. The cubic root of 134218457 is about 512.0009269698. Note that the first 3 decimals are identical.

The spelling of 134218457 in words is "one hundred thirty-four million, two hundred eighteen thousand, four hundred fifty-seven".