1214720401 has 2 divisors, whose sum is σ = 1214720402. Its totient is φ = 1214720400.

The previous prime is 1214720383. The next prime is 1214720417. The reversal of 1214720401 is 1040274121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1173747600 + 40972801 = 34260^2 + 6401^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214720401 - 2⁹ = 1214719889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1214720701) 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, 607360200 + 607360201.

It is an arithmetic number, because the mean of its divisors is an integer number (607360201).

Almost surely, 2^1214720401 is an apocalyptic number.

It is an amenable number.

1214720401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214720401 is an equidigital number, since it uses as much as digits as its factorization.

1214720401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1214720401 is about 34852.8392100271. The cubic root of 1214720401 is about 1066.9861329020.

Adding to 1214720401 its reverse (1040274121), we get a palindrome (2254994522).

It can be divided in two parts, 1214720 and 401, that added together give a palindrome (1215121).

The spelling of 1214720401 in words is "one billion, two hundred fourteen million, seven hundred twenty thousand, four hundred one".