57000149 has 8 divisors (see below), whose sum is σ = 57934080. Its totient is φ = 56070000.

The previous prime is 57000137. The next prime is 57000179. The reversal of 57000149 is 94100075.

57000149 = 132² + 133² + ... + 557².

57000149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 57000149 - 2⁸ = 56999893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57000179) 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 7 ways as a sum of consecutive naturals, for example, 52787 + ... + 53855.

It is an arithmetic number, because the mean of its divisors is an integer number (7241760).

Almost surely, 2^57000149 is an apocalyptic number.

It is an amenable number.

57000149 is a deficient number, since it is larger than the sum of its proper divisors (933931).

57000149 is a wasteful number, since it uses less digits than its factorization.

57000149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 57000149 is about 7549.8443030304. The cubic root of 57000149 is about 384.8504484646.

The spelling of 57000149 in words is "fifty-seven million, one hundred forty-nine", and thus it is an aban number.