210700153 has 2 divisors, whose sum is σ = 210700154. Its totient is φ = 210700152.

The previous prime is 210700121. The next prime is 210700183. The reversal of 210700153 is 351007012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210482064 + 218089 = 14508^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 210700153 - 2⁵ = 210700121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210700153.

It is not a weakly prime, because it can be changed into another prime (210700183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105350076 + 105350077.

It is an arithmetic number, because the mean of its divisors is an integer number (105350077).

Almost surely, 2^210700153 is an apocalyptic number.

It is an amenable number.

210700153 is a deficient number, since it is larger than the sum of its proper divisors (1).

210700153 is an equidigital number, since it uses as much as digits as its factorization.

210700153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 210700153 is about 14515.5142175536. The cubic root of 210700153 is about 595.0520426197.

Adding to 210700153 its reverse (351007012), we get a palindrome (561707165).

The spelling of 210700153 in words is "two hundred ten million, seven hundred thousand, one hundred fifty-three".