134165869 has 2 divisors, whose sum is σ = 134165870. Its totient is φ = 134165868.

The previous prime is 134165813. The next prime is 134165929. The reversal of 134165869 is 968561431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111555844 + 22610025 = 10562^2 + 4755^2 .

It is a cyclic number.

It is not a de Polignac number, because 134165869 - 2⁷ = 134165741 is a prime.

It is a super-2 number, since 2×134165869² = 36000960809050322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134115869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67082934 + 67082935.

It is an arithmetic number, because the mean of its divisors is an integer number (67082935).

Almost surely, 2^134165869 is an apocalyptic number.

It is an amenable number.

134165869 is a deficient number, since it is larger than the sum of its proper divisors (1).

134165869 is an equidigital number, since it uses as much as digits as its factorization.

134165869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 134165869 is about 11582.9991366658. Note that the first 3 decimals coincide. The cubic root of 134165869 is about 511.9340493768.

The spelling of 134165869 in words is "one hundred thirty-four million, one hundred sixty-five thousand, eight hundred sixty-nine".