134615440 has 20 divisors (see below), whose sum is σ = 312981084. Its totient is φ = 53846144.

The previous prime is 134615387. The next prime is 134615441. The reversal of 134615440 is 44516431.

It can be written as a sum of positive squares in 2 ways, for example, as 105842944 + 28772496 = 10288^2 + 5364^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 134615399 and 134615408.

It is not an unprimeable number, because it can be changed into a prime (134615441) 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, 841267 + ... + 841426.

Almost surely, 2^134615440 is an apocalyptic number.

134615440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134615440 is an abundant number, since it is smaller than the sum of its proper divisors (178365644).

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

134615440 is a wasteful number, since it uses less digits than its factorization.

134615440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682706 (or 1682700 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 134615440 is about 11602.3894090829. The cubic root of 134615440 is about 512.5052182693.

Subtracting from 134615440 its reverse (44516431), we obtain a palindrome (90099009).

The spelling of 134615440 in words is "one hundred thirty-four million, six hundred fifteen thousand, four hundred forty".