134525421 has 32 divisors (see below), whose sum is σ = 204871680. Its totient is φ = 87201648.

The previous prime is 134525411. The next prime is 134525423. The reversal of 134525421 is 124525431.

134525421 is a `hidden beast` number, since 134 + 525 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 134525421 - 2⁵ = 134525389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134525423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287830 + ... + 288296.

It is an arithmetic number, because the mean of its divisors is an integer number (6402240).

Almost surely, 2^134525421 is an apocalyptic number.

It is an amenable number.

134525421 is a deficient number, since it is larger than the sum of its proper divisors (70346259).

134525421 is a wasteful number, since it uses less digits than its factorization.

134525421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 744 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 134525421 is about 11598.5094300949. The cubic root of 134525421 is about 512.3909532816.

The spelling of 134525421 in words is "one hundred thirty-four million, five hundred twenty-five thousand, four hundred twenty-one".