1201944841 has 2 divisors, whose sum is σ = 1201944842. Its totient is φ = 1201944840.

The previous prime is 1201944811. The next prime is 1201944851. The reversal of 1201944841 is 1484491021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184805241 + 17139600 = 34421^2 + 4140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201944841 - 2⁹ = 1201944329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201944797 and 1201944806.

It is not a weakly prime, because it can be changed into another prime (1201944811) 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, 600972420 + 600972421.

It is an arithmetic number, because the mean of its divisors is an integer number (600972421).

Almost surely, 2^1201944841 is an apocalyptic number.

It is an amenable number.

1201944841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201944841 is an equidigital number, since it uses as much as digits as its factorization.

1201944841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1201944841 is about 34669.0761486371. The cubic root of 1201944841 is about 1063.2323431984.

The spelling of 1201944841 in words is "one billion, two hundred one million, nine hundred forty-four thousand, eight hundred forty-one".