57909146 has 4 divisors (see below), whose sum is σ = 86863722. Its totient is φ = 28954572.

The previous prime is 57909139. The next prime is 57909211. The reversal of 57909146 is 64190975.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 18156121 = 6305^2 + 4261^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14477285 + ... + 14477288.

Almost surely, 2^57909146 is an apocalyptic number.

57909146 is a deficient number, since it is larger than the sum of its proper divisors (28954576).

57909146 is a wasteful number, since it uses less digits than its factorization.

57909146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28954575.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 57909146 is about 7609.8059107969. The cubic root of 57909146 is about 386.8854408339.

The spelling of 57909146 in words is "fifty-seven million, nine hundred nine thousand, one hundred forty-six".