134521345 has 8 divisors (see below), whose sum is σ = 184486464. Its totient is φ = 92243184.

The previous prime is 134521333. The next prime is 134521351. The reversal of 134521345 is 543125431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134521345 - 2⁹ = 134520833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921699 + ... + 1921768.

It is an arithmetic number, because the mean of its divisors is an integer number (23060808).

Almost surely, 2^134521345 is an apocalyptic number.

It is an amenable number.

134521345 is a deficient number, since it is larger than the sum of its proper divisors (49965119).

134521345 is an equidigital number, since it uses as much as digits as its factorization.

134521345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843479.

The product of its digits is 7200, while the sum is 28.

The square root of 134521345 is about 11598.3337165301. Note that the first 3 decimals coincide. The cubic root of 134521345 is about 512.3857782334.

Adding to 134521345 its reverse (543125431), we get a palindrome (677646776).

The spelling of 134521345 in words is "one hundred thirty-four million, five hundred twenty-one thousand, three hundred forty-five".