10420001 has 2 divisors, whose sum is σ = 10420002. Its totient is φ = 10420000.

The previous prime is 10419991. The next prime is 10420009. The reversal of 10420001 is 10002401.

It is an a-pointer prime, because the next prime (10420009) can be obtained adding 10420001 to its sum of digits (8).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9296401 + 1123600 = 3049^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 10420001 - 2²² = 6225697 is a prime.

It is not a weakly prime, because it can be changed into another prime (10420009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210000 + 5210001.

It is an arithmetic number, because the mean of its divisors is an integer number (5210001).

Almost surely, 2^10420001 is an apocalyptic number.

It is an amenable number.

10420001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10420001 is an equidigital number, since it uses as much as digits as its factorization.

10420001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 10420001 is about 3228.0026332083. The cubic root of 10420001 is about 218.4184161659.

Adding to 10420001 its reverse (10002401), we get a palindrome (20422402).

The spelling of 10420001 in words is "ten million, four hundred twenty thousand, one".