57700145 has 16 divisors (see below), whose sum is σ = 71884800. Its totient is φ = 44414400.

The previous prime is 57700133. The next prime is 57700147. The reversal of 57700145 is 54100775.

It is not a de Polignac number, because 57700145 - 2¹⁰ = 57699121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57700147) 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, 28631 + ... + 30579.

It is an arithmetic number, because the mean of its divisors is an integer number (4492800).

Almost surely, 2^57700145 is an apocalyptic number.

It is an amenable number.

57700145 is a deficient number, since it is larger than the sum of its proper divisors (14184655).

57700145 is a wasteful number, since it uses less digits than its factorization.

57700145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 57700145 is about 7596.0611503594. The cubic root of 57700145 is about 386.4194412337.

The spelling of 57700145 in words is "fifty-seven million, seven hundred thousand, one hundred forty-five".