134630681 has 2 divisors, whose sum is σ = 134630682. Its totient is φ = 134630680.

The previous prime is 134630669. The next prime is 134630689. The reversal of 134630681 is 186036431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130325056 + 4305625 = 11416^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 134630681 - 2²² = 130436377 is a prime.

It is a super-3 number, since 3×134630681³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134630689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67315340 + 67315341.

It is an arithmetic number, because the mean of its divisors is an integer number (67315341).

Almost surely, 2^134630681 is an apocalyptic number.

It is an amenable number.

134630681 is a deficient number, since it is larger than the sum of its proper divisors (1).

134630681 is an equidigital number, since it uses as much as digits as its factorization.

134630681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 134630681 is about 11603.0461948576. The cubic root of 134630681 is about 512.5245592831.

The spelling of 134630681 in words is "one hundred thirty-four million, six hundred thirty thousand, six hundred eighty-one".