134043661 has 2 divisors, whose sum is σ = 134043662. Its totient is φ = 134043660.

The previous prime is 134043641. The next prime is 134043667. The reversal of 134043661 is 166340431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121220100 + 12823561 = 11010^2 + 3581^2 .

It is a cyclic number.

It is not a de Polignac number, because 134043661 - 2¹³ = 134035469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134043667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67021830 + 67021831.

It is an arithmetic number, because the mean of its divisors is an integer number (67021831).

Almost surely, 2^134043661 is an apocalyptic number.

It is an amenable number.

134043661 is a deficient number, since it is larger than the sum of its proper divisors (1).

134043661 is an equidigital number, since it uses as much as digits as its factorization.

134043661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 134043661 is about 11577.7226171644. The cubic root of 134043661 is about 511.7785666104.

The spelling of 134043661 in words is "one hundred thirty-four million, forty-three thousand, six hundred sixty-one".