134315521 has 8 divisors (see below), whose sum is σ = 142331904. Its totient is φ = 126312000.

The previous prime is 134315477. The next prime is 134315527. The reversal of 134315521 is 125513431.

It is a happy number.

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 134315521 - 2⁷ = 134315393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134315527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25896 + ... + 30646.

It is an arithmetic number, because the mean of its divisors is an integer number (17791488).

Almost surely, 2^134315521 is an apocalyptic number.

It is an amenable number.

134315521 is a deficient number, since it is larger than the sum of its proper divisors (8016383).

134315521 is a wasteful number, since it uses less digits than its factorization.

134315521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431.

The product of its digits is 1800, while the sum is 25.

The square root of 134315521 is about 11589.4573212036. The cubic root of 134315521 is about 512.1243200410.

Adding to 134315521 its reverse (125513431), we get a palindrome (259828952).

The spelling of 134315521 in words is "one hundred thirty-four million, three hundred fifteen thousand, five hundred twenty-one".