1405020241 has 2 divisors, whose sum is σ = 1405020242. Its totient is φ = 1405020240.

The previous prime is 1405020193. The next prime is 1405020247. The reversal of 1405020241 is 1420205041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1267075216 + 137945025 = 35596^2 + 11745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405020241 - 2⁹ = 1405019729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1405020247) 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, 702510120 + 702510121.

It is an arithmetic number, because the mean of its divisors is an integer number (702510121).

Almost surely, 2^1405020241 is an apocalyptic number.

It is an amenable number.

1405020241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405020241 is an equidigital number, since it uses as much as digits as its factorization.

1405020241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1405020241 is about 37483.5996270369. The cubic root of 1405020241 is about 1120.0245107837.

Adding to 1405020241 its reverse (1420205041), we get a palindrome (2825225282).

The spelling of 1405020241 in words is "one billion, four hundred five million, twenty thousand, two hundred forty-one".