134887540 has 48 divisors (see below), whose sum is σ = 291723264. Its totient is φ = 52358400.

The previous prime is 134887483. The next prime is 134887561. The reversal of 134887540 is 45788431.

It is a junction number, because it is equal to n+sod(n) for n = 134887493 and 134887502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221917 + ... + 222523.

It is an arithmetic number, because the mean of its divisors is an integer number (6077568).

Almost surely, 2^134887540 is an apocalyptic number.

134887540 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 134887540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145861632).

134887540 is an abundant number, since it is smaller than the sum of its proper divisors (156835724).

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

134887540 is a wasteful number, since it uses less digits than its factorization.

134887540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 134887540 is about 11614.1095224731. The cubic root of 134887540 is about 512.8502971005.

It can be divided in two parts, 1348 and 87540, that added together give a palindrome (88888).

The spelling of 134887540 in words is "one hundred thirty-four million, eight hundred eighty-seven thousand, five hundred forty".