134521040 has 20 divisors (see below), whose sum is σ = 312761604. Its totient is φ = 53808384.

The previous prime is 134521033. The next prime is 134521087. The reversal of 134521040 is 40125431.

It can be written as a sum of positive squares in 2 ways, for example, as 45859984 + 88661056 = 6772^2 + 9416^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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, 840677 + ... + 840836.

Almost surely, 2^134521040 is an apocalyptic number.

134521040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134521040 is an abundant number, since it is smaller than the sum of its proper divisors (178240564).

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

134521040 is a wasteful number, since it uses less digits than its factorization.

134521040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681526 (or 1681520 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 134521040 is about 11598.3205680823. The cubic root of 134521040 is about 512.3853909893.

Adding to 134521040 its reverse (40125431), we get a palindrome (174646471).

The spelling of 134521040 in words is "one hundred thirty-four million, five hundred twenty-one thousand, forty".