134489509 has 32 divisors (see below), whose sum is σ = 173352960. Its totient is φ = 101304000.

The previous prime is 134489491. The next prime is 134489587. The reversal of 134489509 is 905984431.

It is a happy number.

It is not a de Polignac number, because 134489509 - 2⁹ = 134488997 is a prime.

It is a super-2 number, since 2×134489509² = 36174856062122162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134489009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499827 + ... + 500095.

It is an arithmetic number, because the mean of its divisors is an integer number (5417280).

Almost surely, 2^134489509 is an apocalyptic number.

It is an amenable number.

134489509 is a deficient number, since it is larger than the sum of its proper divisors (38863451).

134489509 is a wasteful number, since it uses less digits than its factorization.

134489509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 134489509 is about 11596.9611967963. The cubic root of 134489509 is about 512.3453544116.

The spelling of 134489509 in words is "one hundred thirty-four million, four hundred eighty-nine thousand, five hundred nine".