134420669 has 4 divisors (see below), whose sum is σ = 134740380. Its totient is φ = 134100960.

The previous prime is 134420651. The next prime is 134420677. The reversal of 134420669 is 966024431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966024431 = 383 ⋅2522257.

It can be written as a sum of positive squares in 2 ways, for example, as 69939769 + 64480900 = 8363^2 + 8030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134420669 is a prime.

It is a super-2 number, since 2×134420669² = 36137832508815122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134420969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159224 + ... + 160065.

It is an arithmetic number, because the mean of its divisors is an integer number (33685095).

Almost surely, 2^134420669 is an apocalyptic number.

It is an amenable number.

134420669 is a deficient number, since it is larger than the sum of its proper divisors (319711).

134420669 is an equidigital number, since it uses as much as digits as its factorization.

134420669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319710.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 134420669 is about 11593.9927979967. The cubic root of 134420669 is about 512.2579228740.

The spelling of 134420669 in words is "one hundred thirty-four million, four hundred twenty thousand, six hundred sixty-nine".