134369569 has 4 divisors (see below), whose sum is σ = 137228544. Its totient is φ = 131510596.

The previous prime is 134369561. The next prime is 134369579. The reversal of 134369569 is 965963431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134369569 - 2³ = 134369561 is a prime.

It is a super-2 number, since 2×134369569² = 36110362146491522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134369561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429417 + ... + 1429510.

It is an arithmetic number, because the mean of its divisors is an integer number (34307136).

Almost surely, 2^134369569 is an apocalyptic number.

It is an amenable number.

134369569 is a deficient number, since it is larger than the sum of its proper divisors (2858975).

134369569 is an equidigital number, since it uses as much as digits as its factorization.

134369569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858974.

The product of its digits is 524880, while the sum is 46.

The square root of 134369569 is about 11591.7888610861. The cubic root of 134369569 is about 512.1930030524.

It can be divided in two parts, 13436 and 9569, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 134369569 in words is "one hundred thirty-four million, three hundred sixty-nine thousand, five hundred sixty-nine".