134643361 has 2 divisors, whose sum is σ = 134643362. Its totient is φ = 134643360.

The previous prime is 134643359. The next prime is 134643371. The reversal of 134643361 is 163346431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105698961 + 28944400 = 10281^2 + 5380^2 .

It is a cyclic number.

It is not a de Polignac number, because 134643361 - 2¹ = 134643359 is a prime.

It is a super-2 number, since 2×134643361² = 36257669322752642, which contains 22 as substring.

Together with 134643359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (134643331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67321680 + 67321681.

It is an arithmetic number, because the mean of its divisors is an integer number (67321681).

Almost surely, 2^134643361 is an apocalyptic number.

It is an amenable number.

134643361 is a deficient number, since it is larger than the sum of its proper divisors (1).

134643361 is an equidigital number, since it uses as much as digits as its factorization.

134643361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 134643361 is about 11603.5925902283. The cubic root of 134643361 is about 512.5406492446.

Adding to 134643361 its reverse (163346431), we get a palindrome (297989792).

The spelling of 134643361 in words is "one hundred thirty-four million, six hundred forty-three thousand, three hundred sixty-one".