134649936 has 60 divisors (see below), whose sum is σ = 383035380. Its totient is φ = 44144640.

The previous prime is 134649917. The next prime is 134649937. The reversal of 134649936 is 639946431.

It can be written as a sum of positive squares in 2 ways, for example, as 7952400 + 126697536 = 2820^2 + 11256^2 .

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 134649891 and 134649900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134649937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1120 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (6383923).

Almost surely, 2^134649936 is an apocalyptic number.

134649936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134649936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191517690).

134649936 is an abundant number, since it is smaller than the sum of its proper divisors (248385444).

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

134649936 is a wasteful number, since it uses less digits than its factorization.

134649936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15404 (or 15395 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 134649936 is about 11603.8759041968. The cubic root of 134649936 is about 512.5489920248.

The spelling of 134649936 in words is "one hundred thirty-four million, six hundred forty-nine thousand, nine hundred thirty-six".