1401217 has 2 divisors, whose sum is σ = 1401218. Its totient is φ = 1401216.

The previous prime is 1401203. The next prime is 1401233. The reversal of 1401217 is 7121041.

It is an a-pointer prime, because the next prime (1401233) can be obtained adding 1401217 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1185921 + 215296 = 1089^2 + 464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401217 - 2¹⁹ = 876929 is a prime.

It is equal to p₁₀₇₂₀₆ and since 1401217 and 107206 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401217.

It is not a weakly prime, because it can be changed into another prime (1401247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700608 + 700609.

It is an arithmetic number, because the mean of its divisors is an integer number (700609).

2^1401217 is an apocalyptic number.

It is an amenable number.

1401217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401217 is an equidigital number, since it uses as much as digits as its factorization.

1401217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1401217 is about 1183.7301212692. The cubic root of 1401217 is about 111.9013001638.

Adding to 1401217 its reverse (7121041), we get a palindrome (8522258).

The spelling of 1401217 in words is "one million, four hundred one thousand, two hundred seventeen".