134120521 has 8 divisors (see below), whose sum is σ = 140152320. Its totient is φ = 128105472.

The previous prime is 134120473. The next prime is 134120527. The reversal of 134120521 is 125021431.

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 134120521 - 2²³ = 125731913 is a prime.

It is a super-2 number, since 2×134120521² = 35976628306622882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134120527) 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, 13896 + ... + 21478.

It is an arithmetic number, because the mean of its divisors is an integer number (17519040).

Almost surely, 2^134120521 is an apocalyptic number.

It is an amenable number.

134120521 is a deficient number, since it is larger than the sum of its proper divisors (6031799).

134120521 is an equidigital number, since it uses as much as digits as its factorization.

134120521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 134120521 is about 11581.0414471238. The cubic root of 134120521 is about 511.8763650553.

Adding to 134120521 its reverse (125021431), we get a palindrome (259141952).

The spelling of 134120521 in words is "one hundred thirty-four million, one hundred twenty thousand, five hundred twenty-one".