134463869 has 2 divisors, whose sum is σ = 134463870. Its totient is φ = 134463868.

The previous prime is 134463821. The next prime is 134463877. The reversal of 134463869 is 968364431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87198244 + 47265625 = 9338^2 + 6875^2 .

It is a cyclic number.

It is not a de Polignac number, because 134463869 - 2⁸ = 134463613 is a prime.

It is a super-2 number, since 2×134463869² = 36161064132898322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134462869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67231934 + 67231935.

It is an arithmetic number, because the mean of its divisors is an integer number (67231935).

Almost surely, 2^134463869 is an apocalyptic number.

It is an amenable number.

134463869 is a deficient number, since it is larger than the sum of its proper divisors (1).

134463869 is an equidigital number, since it uses as much as digits as its factorization.

134463869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 44.

The square root of 134463869 is about 11595.8556820961. The cubic root of 134463869 is about 512.3127933345.

The spelling of 134463869 in words is "one hundred thirty-four million, four hundred sixty-three thousand, eight hundred sixty-nine".