1401618241 has 2 divisors, whose sum is σ = 1401618242. Its totient is φ = 1401618240.

The previous prime is 1401618217. The next prime is 1401618259. The reversal of 1401618241 is 1428161041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 961248016 + 440370225 = 31004^2 + 20985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401618241 - 2⁵ = 1401618209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401618271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700809120 + 700809121.

It is an arithmetic number, because the mean of its divisors is an integer number (700809121).

Almost surely, 2^1401618241 is an apocalyptic number.

It is an amenable number.

1401618241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401618241 is an equidigital number, since it uses as much as digits as its factorization.

1401618241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 1401618241 is about 37438.1922774057. The cubic root of 1401618241 is about 1119.1198019043.

Adding to 1401618241 its reverse (1428161041), we get a palindrome (2829779282).

The spelling of 1401618241 in words is "one billion, four hundred one million, six hundred eighteen thousand, two hundred forty-one".