134872540 has 48 divisors (see below), whose sum is σ = 310915584. Its totient is φ = 48737600.

The previous prime is 134872531. The next prime is 134872547. The reversal of 134872540 is 45278431.

It is a junction number, because it is equal to n+sod(n) for n = 134872496 and 134872505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134872547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34905 + ... + 38575.

It is an arithmetic number, because the mean of its divisors is an integer number (6477408).

Almost surely, 2^134872540 is an apocalyptic number.

134872540 is a gapful number since it is divisible by the number (10) 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 134872540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155457792).

134872540 is an abundant number, since it is smaller than the sum of its proper divisors (176043044).

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

134872540 is a wasteful number, since it uses less digits than its factorization.

134872540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 134872540 is about 11613.4637382652. The cubic root of 134872540 is about 512.8312861040.

The spelling of 134872540 in words is "one hundred thirty-four million, eight hundred seventy-two thousand, five hundred forty".