134011521 has 72 divisors (see below), whose sum is σ = 237878784. Its totient is φ = 72394560.

The previous prime is 134011519. The next prime is 134011529. The reversal of 134011521 is 125110431.

134011521 is a `hidden beast` number, since 134 + 0 + 11 + 521 = 666.

It is not a de Polignac number, because 134011521 - 2¹ = 134011519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134011494 and 134011503.

It is not an unprimeable number, because it can be changed into a prime (134011529) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 701536 + ... + 701726.

It is an arithmetic number, because the mean of its divisors is an integer number (3303872).

Almost surely, 2^134011521 is an apocalyptic number.

It is an amenable number.

134011521 is a deficient number, since it is larger than the sum of its proper divisors (103867263).

134011521 is a wasteful number, since it uses less digits than its factorization.

134011521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 134011521 is about 11576.3345235010. The cubic root of 134011521 is about 511.7376598446.

Adding to 134011521 its reverse (125110431), we get a palindrome (259121952).

The spelling of 134011521 in words is "one hundred thirty-four million, eleven thousand, five hundred twenty-one".