1398481241 has 2 divisors, whose sum is σ = 1398481242. Its totient is φ = 1398481240.

The previous prime is 1398481223. The next prime is 1398481309. The reversal of 1398481241 is 1421848931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1139400025 + 259081216 = 33755^2 + 16096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1398481241 - 2¹⁰ = 1398480217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1398481141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699240620 + 699240621.

It is an arithmetic number, because the mean of its divisors is an integer number (699240621).

Almost surely, 2^1398481241 is an apocalyptic number.

It is an amenable number.

1398481241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398481241 is an equidigital number, since it uses as much as digits as its factorization.

1398481241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 41.

The square root of 1398481241 is about 37396.2730897077. The cubic root of 1398481241 is about 1118.2842674027.

The spelling of 1398481241 in words is "one billion, three hundred ninety-eight million, four hundred eighty-one thousand, two hundred forty-one".