134531040 has 96 divisors (see below), whose sum is σ = 484323840. Its totient is φ = 30749184.

The previous prime is 134531017. The next prime is 134531051. The reversal of 134531040 is 40135431.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 134530998 and 134531016.

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, 16660 + ... + 23379.

It is an arithmetic number, because the mean of its divisors is an integer number (5045040).

Almost surely, 2^134531040 is an apocalyptic number.

134531040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134531040 is an abundant number, since it is smaller than the sum of its proper divisors (349792800).

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

134531040 is a wasteful number, since it uses less digits than its factorization.

134531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40064 (or 40056 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 134531040 is about 11598.7516569672. The cubic root of 134531040 is about 512.3980872113.

Adding to 134531040 its reverse (40135431), we get a palindrome (174666471).

It can be divided in two parts, 1345 and 31040, that added together give a triangular number (32385 = T₂₅₄).

The spelling of 134531040 in words is "one hundred thirty-four million, five hundred thirty-one thousand, forty".