105420001 has 2 divisors, whose sum is σ = 105420002. Its totient is φ = 105420000.

The previous prime is 105419989. The next prime is 105420041. The reversal of 105420001 is 100024501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58140625 + 47279376 = 7625^2 + 6876^2 .

It is a cyclic number.

It is not a de Polignac number, because 105420001 - 2⁵ = 105419969 is a prime.

It is a super-2 number, since 2×105420001² = 22226753221680002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105420041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52710000 + 52710001.

It is an arithmetic number, because the mean of its divisors is an integer number (52710001).

Almost surely, 2^105420001 is an apocalyptic number.

It is an amenable number.

105420001 is a deficient number, since it is larger than the sum of its proper divisors (1).

105420001 is an equidigital number, since it uses as much as digits as its factorization.

105420001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 105420001 is about 10267.4242631733. The cubic root of 105420001 is about 472.3975885471.

Adding to 105420001 its reverse (100024501), we get a palindrome (205444502).

The spelling of 105420001 in words is "one hundred five million, four hundred twenty thousand, one".