57645147 has 16 divisors (see below), whose sum is σ = 93007872. Its totient is φ = 31002240.

The previous prime is 57645143. The next prime is 57645187. The reversal of 57645147 is 74154675.

It is not a de Polignac number, because 57645147 - 2² = 57645143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57645143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80379 + ... + 81092.

It is an arithmetic number, because the mean of its divisors is an integer number (5812992).

Almost surely, 2^57645147 is an apocalyptic number.

57645147 is a deficient number, since it is larger than the sum of its proper divisors (35362725).

57645147 is a wasteful number, since it uses less digits than its factorization.

57645147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161498.

The product of its digits is 117600, while the sum is 39.

The square root of 57645147 is about 7592.4401215946. The cubic root of 57645147 is about 386.2966278372.

The spelling of 57645147 in words is "fifty-seven million, six hundred forty-five thousand, one hundred forty-seven".