134404469 has 2 divisors, whose sum is σ = 134404470. Its totient is φ = 134404468.

The previous prime is 134404463. The next prime is 134404471. The reversal of 134404469 is 964404431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121837444 + 12567025 = 11038^2 + 3545^2 .

It is a cyclic number.

It is not a de Polignac number, because 134404469 - 2⁴ = 134404453 is a prime.

It is a super-2 number, since 2×134404469² = 36129122574343922, which contains 22 as substring.

Together with 134404471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134404463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67202234 + 67202235.

It is an arithmetic number, because the mean of its divisors is an integer number (67202235).

Almost surely, 2^134404469 is an apocalyptic number.

It is an amenable number.

134404469 is a deficient number, since it is larger than the sum of its proper divisors (1).

134404469 is an equidigital number, since it uses as much as digits as its factorization.

134404469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 134404469 is about 11593.2941392859. The cubic root of 134404469 is about 512.2373434205.

The spelling of 134404469 in words is "one hundred thirty-four million, four hundred four thousand, four hundred sixty-nine".