65228101 has 2 divisors, whose sum is σ = 65228102. Its totient is φ = 65228100.

The previous prime is 65228087. The next prime is 65228143. The reversal of 65228101 is 10182256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57775201 + 7452900 = 7601^2 + 2730^2 .

It is a cyclic number.

It is not a de Polignac number, because 65228101 - 2¹⁹ = 64703813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65228701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32614050 + 32614051.

It is an arithmetic number, because the mean of its divisors is an integer number (32614051).

Almost surely, 2^65228101 is an apocalyptic number.

It is an amenable number.

65228101 is a deficient number, since it is larger than the sum of its proper divisors (1).

65228101 is an equidigital number, since it uses as much as digits as its factorization.

65228101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 65228101 is about 8076.3915828791. The cubic root of 65228101 is about 402.5423506484.

The spelling of 65228101 in words is "sixty-five million, two hundred twenty-eight thousand, one hundred one".