210100057 has 2 divisors, whose sum is σ = 210100058. Its totient is φ = 210100056.

The previous prime is 210100013. The next prime is 210100073. The reversal of 210100057 is 750001012.

It is an a-pointer prime, because the next prime (210100073) can be obtained adding 210100057 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148571721 + 61528336 = 12189^2 + 7844^2 .

It is a cyclic number.

It is not a de Polignac number, because 210100057 - 2¹⁵ = 210067289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210100057.

It is not a weakly prime, because it can be changed into another prime (210100757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050028 + 105050029.

It is an arithmetic number, because the mean of its divisors is an integer number (105050029).

Almost surely, 2^210100057 is an apocalyptic number.

It is an amenable number.

210100057 is a deficient number, since it is larger than the sum of its proper divisors (1).

210100057 is an equidigital number, since it uses as much as digits as its factorization.

210100057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 210100057 is about 14494.8286295492. The cubic root of 210100057 is about 594.4865820332.

Adding to 210100057 its reverse (750001012), we get a palindrome (960101069).

The spelling of 210100057 in words is "two hundred ten million, one hundred thousand, fifty-seven".