134236540 has 24 divisors (see below), whose sum is σ = 288454320. Its totient is φ = 52445568.

The previous prime is 134236537. The next prime is 134236547. The reversal of 134236540 is 45632431.

It is a junction number, because it is equal to n+sod(n) for n = 134236499 and 134236508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134236547) 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, 77185 + ... + 78904.

It is an arithmetic number, because the mean of its divisors is an integer number (12018930).

Almost surely, 2^134236540 is an apocalyptic number.

134236540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134236540 is an abundant number, since it is smaller than the sum of its proper divisors (154217780).

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

134236540 is a wasteful number, since it uses less digits than its factorization.

134236540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156141 (or 156139 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 134236540 is about 11586.0493698240. The cubic root of 134236540 is about 512.0239195775.

Adding to 134236540 its reverse (45632431), we get a palindrome (179868971).

The spelling of 134236540 in words is "one hundred thirty-four million, two hundred thirty-six thousand, five hundred forty".