57138006 has 8 divisors (see below), whose sum is σ = 114276024. Its totient is φ = 19046000.

The previous prime is 57137999. The next prime is 57138007. The reversal of 57138006 is 60083175.

It is a sphenic number, since it is the product of 3 distinct primes.

57138006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57138007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4761495 + ... + 4761506.

It is an arithmetic number, because the mean of its divisors is an integer number (14284503).

Almost surely, 2^57138006 is an apocalyptic number.

57138006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57138006 is a wasteful number, since it uses less digits than its factorization.

57138006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523006.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 57138006 is about 7558.9685804348. The cubic root of 57138006 is about 385.1604570949.

The spelling of 57138006 in words is "fifty-seven million, one hundred thirty-eight thousand, six".