612134208 has 168 divisors, whose sum is σ = 2020084352. Its totient is φ = 173601792.

The previous prime is 612134203. The next prime is 612134231. The reversal of 612134208 is 802431216.

612134208 is a `hidden beast` number, since 612 + 1 + 3 + 42 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612134203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 632541 + ... + 633507.

Almost surely, 2^612134208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612134208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010042176).

612134208 is an abundant number, since it is smaller than the sum of its proper divisors (1407950144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612134208 is a wasteful number, since it uses less digits than its factorization.

612134208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 612134208 is about 24741.3461234428. The cubic root of 612134208 is about 849.0805319273.

The spelling of 612134208 in words is "six hundred twelve million, one hundred thirty-four thousand, two hundred eight".