134660641 has 2 divisors, whose sum is σ = 134660642. Its totient is φ = 134660640.

The previous prime is 134660633. The next prime is 134660663. The reversal of 134660641 is 146066431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67486225 + 67174416 = 8215^2 + 8196^2 .

It is a cyclic number.

It is not a de Polignac number, because 134660641 - 2³ = 134660633 is a prime.

It is equal to p_7627234 and since 134660641 and 7627234 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (134660681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67330320 + 67330321.

It is an arithmetic number, because the mean of its divisors is an integer number (67330321).

Almost surely, 2^134660641 is an apocalyptic number.

It is an amenable number.

134660641 is a deficient number, since it is larger than the sum of its proper divisors (1).

134660641 is an equidigital number, since it uses as much as digits as its factorization.

134660641 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 31.

The square root of 134660641 is about 11604.3371633196. The cubic root of 134660641 is about 512.5625746320.

The spelling of 134660641 in words is "one hundred thirty-four million, six hundred sixty thousand, six hundred forty-one".