134555669 has 2 divisors, whose sum is σ = 134555670. Its totient is φ = 134555668.

The previous prime is 134555657. The next prime is 134555693. The reversal of 134555669 is 966555431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127464100 + 7091569 = 11290^2 + 2663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134555669 is a prime.

It is a super-2 number, since 2×134555669² = 36210456120075122, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134555609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67277834 + 67277835.

It is an arithmetic number, because the mean of its divisors is an integer number (67277835).

Almost surely, 2^134555669 is an apocalyptic number.

It is an amenable number.

134555669 is a deficient number, since it is larger than the sum of its proper divisors (1).

134555669 is an equidigital number, since it uses as much as digits as its factorization.

134555669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 44.

The square root of 134555669 is about 11599.8133174633. The cubic root of 134555669 is about 512.4293540536.

The spelling of 134555669 in words is "one hundred thirty-four million, five hundred fifty-five thousand, six hundred sixty-nine".