134828397 has 12 divisors (see below), whose sum is σ = 212457024. Its totient is φ = 81714120.

The previous prime is 134828381. The next prime is 134828399. The reversal of 134828397 is 793828431.

134828397 is a `hidden beast` number, since 1 + 3 + 482 + 83 + 97 = 666.

It is not a de Polignac number, because 134828397 - 2⁴ = 134828381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134828399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 680853 + ... + 681050.

It is an arithmetic number, because the mean of its divisors is an integer number (17704752).

Almost surely, 2^134828397 is an apocalyptic number.

It is an amenable number.

134828397 is a deficient number, since it is larger than the sum of its proper divisors (77628627).

134828397 is a wasteful number, since it uses less digits than its factorization.

134828397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361920 (or 1361917 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 134828397 is about 11611.5630730750. The cubic root of 134828397 is about 512.7753310973.

The spelling of 134828397 in words is "one hundred thirty-four million, eight hundred twenty-eight thousand, three hundred ninety-seven".