20353741 has 2 divisors, whose sum is σ = 20353742. Its totient is φ = 20353740.

The previous prime is 20353733. The next prime is 20353759. The reversal of 20353741 is 14735302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16232841 + 4120900 = 4029^2 + 2030^2 .

It is a cyclic number.

It is not a de Polignac number, because 20353741 - 2³ = 20353733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20353721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176870 + 10176871.

It is an arithmetic number, because the mean of its divisors is an integer number (10176871).

Almost surely, 2^20353741 is an apocalyptic number.

It is an amenable number.

20353741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20353741 is an equidigital number, since it uses as much as digits as its factorization.

20353741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20353741 is about 4511.5120525163. The cubic root of 20353741 is about 273.0327528943.

It can be divided in two parts, 2035 and 3741, that added together give a square (5776 = 76²).

The spelling of 20353741 in words is "twenty million, three hundred fifty-three thousand, seven hundred forty-one".