134640617 has 4 divisors (see below), whose sum is σ = 137181060. Its totient is φ = 132100176.

The previous prime is 134640613. The next prime is 134640619. The reversal of 134640617 is 716046431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716046431 = 71 ⋅10085161.

It can be written as a sum of positive squares in 2 ways, for example, as 43705321 + 90935296 = 6611^2 + 9536^2 .

It is a cyclic number.

It is not a de Polignac number, because 134640617 - 2² = 134640613 is a prime.

It is a super-3 number, since 3×134640617³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134640613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270142 + ... + 1270247.

It is an arithmetic number, because the mean of its divisors is an integer number (34295265).

Almost surely, 2^134640617 is an apocalyptic number.

It is an amenable number.

134640617 is a deficient number, since it is larger than the sum of its proper divisors (2540443).

134640617 is an equidigital number, since it uses as much as digits as its factorization.

134640617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540442.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 134640617 is about 11603.4743503832. The cubic root of 134640617 is about 512.5371674017.

The spelling of 134640617 in words is "one hundred thirty-four million, six hundred forty thousand, six hundred seventeen".