134645992 has 32 divisors (see below), whose sum is σ = 273984480. Its totient is φ = 61663680.

The previous prime is 134645981. The next prime is 134645993. The reversal of 134645992 is 299546431.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (134645993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8683 + ... + 18565.

It is an arithmetic number, because the mean of its divisors is an integer number (8562015).

Almost surely, 2^134645992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134645992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136992240).

134645992 is an abundant number, since it is smaller than the sum of its proper divisors (139338488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134645992 is a wasteful number, since it uses less digits than its factorization.

134645992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10033 (or 10029 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 134645992 is about 11603.7059597354. The cubic root of 134645992 is about 512.5439876581.

The spelling of 134645992 in words is "one hundred thirty-four million, six hundred forty-five thousand, nine hundred ninety-two".