134165761 has 2 divisors, whose sum is σ = 134165762. Its totient is φ = 134165760.

The previous prime is 134165747. The next prime is 134165791. The reversal of 134165761 is 167561431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92640625 + 41525136 = 9625^2 + 6444^2 .

It is an emirp because it is prime and its reverse (167561431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134165761 - 2²³ = 125777153 is a prime.

It is not a weakly prime, because it can be changed into another prime (134165701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67082880 + 67082881.

It is an arithmetic number, because the mean of its divisors is an integer number (67082881).

Almost surely, 2^134165761 is an apocalyptic number.

It is an amenable number.

134165761 is a deficient number, since it is larger than the sum of its proper divisors (1).

134165761 is an equidigital number, since it uses as much as digits as its factorization.

134165761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 134165761 is about 11582.9944746598. The cubic root of 134165761 is about 511.9339120123.

The spelling of 134165761 in words is "one hundred thirty-four million, one hundred sixty-five thousand, seven hundred sixty-one".