414245021 has 2 divisors, whose sum is σ = 414245022. Its totient is φ = 414245020.

The previous prime is 414244969. The next prime is 414245053. The reversal of 414245021 is 120542414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277588921 + 136656100 = 16661^2 + 11690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-414245021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (414245521) 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, 207122510 + 207122511.

It is an arithmetic number, because the mean of its divisors is an integer number (207122511).

Almost surely, 2^414245021 is an apocalyptic number.

It is an amenable number.

414245021 is a deficient number, since it is larger than the sum of its proper divisors (1).

414245021 is an equidigital number, since it uses as much as digits as its factorization.

414245021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 414245021 is about 20353.0101213555. The cubic root of 414245021 is about 745.4509954904.

Adding to 414245021 its reverse (120542414), we get a palindrome (534787435).

The spelling of 414245021 in words is "four hundred fourteen million, two hundred forty-five thousand, twenty-one".