201560101 has 2 divisors, whose sum is σ = 201560102. Its totient is φ = 201560100.

The previous prime is 201560087. The next prime is 201560131. The reversal of 201560101 is 101065102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165739876 + 35820225 = 12874^2 + 5985^2 .

It is a cyclic number.

It is not a de Polignac number, because 201560101 - 2⁵ = 201560069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201560131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100780050 + 100780051.

It is an arithmetic number, because the mean of its divisors is an integer number (100780051).

Almost surely, 2^201560101 is an apocalyptic number.

It is an amenable number.

201560101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201560101 is an equidigital number, since it uses as much as digits as its factorization.

201560101 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 16.

The square root of 201560101 is about 14197.1863761803. The cubic root of 201560101 is about 586.3201985701.

The spelling of 201560101 in words is "two hundred one million, five hundred sixty thousand, one hundred one".