201020153 has 2 divisors, whose sum is σ = 201020154. Its totient is φ = 201020152.

The previous prime is 201020147. The next prime is 201020159. The reversal of 201020153 is 351020102.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (201020147) and next prime (201020159).

It can be written as a sum of positive squares in only one way, i.e., 157828969 + 43191184 = 12563^2 + 6572^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020153 - 2¹⁰ = 201019129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_11132330 and since 201020153 and 11132330 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (201020159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510076 + 100510077.

It is an arithmetic number, because the mean of its divisors is an integer number (100510077).

Almost surely, 2^201020153 is an apocalyptic number.

It is an amenable number.

201020153 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020153 is an equidigital number, since it uses as much as digits as its factorization.

201020153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 201020153 is about 14178.1576024531. The cubic root of 201020153 is about 585.7961769836.

Adding to 201020153 its reverse (351020102), we get a palindrome (552040255).

The spelling of 201020153 in words is "two hundred one million, twenty thousand, one hundred fifty-three".