134551965 has 16 divisors (see below), whose sum is σ = 217297728. Its totient is φ = 71089536.

The previous prime is 134551913. The next prime is 134551969. The reversal of 134551965 is 569155431.

It is a happy number.

It is not a de Polignac number, because 134551965 - 2²¹ = 132454813 is a prime.

It is a super-2 number, since 2×134551965² = 36208462570722450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134551969) 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 15 ways as a sum of consecutive naturals, for example, 40312 + ... + 43521.

It is an arithmetic number, because the mean of its divisors is an integer number (13581108).

Almost surely, 2^134551965 is an apocalyptic number.

134551965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134551965 is a deficient number, since it is larger than the sum of its proper divisors (82745763).

134551965 is a wasteful number, since it uses less digits than its factorization.

134551965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83948.

The product of its digits is 81000, while the sum is 39.

The square root of 134551965 is about 11599.6536586227. The cubic root of 134551965 is about 512.4246520202.

The spelling of 134551965 in words is "one hundred thirty-four million, five hundred fifty-one thousand, nine hundred sixty-five".