1219403041 has 2 divisors, whose sum is σ = 1219403042. Its totient is φ = 1219403040.

The previous prime is 1219403039. The next prime is 1219403051. The reversal of 1219403041 is 1403049121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 880843041 + 338560000 = 29679^2 + 18400^2 .

It is an emirp because it is prime and its reverse (1403049121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1219403041 - 2¹ = 1219403039 is a prime.

Together with 1219403039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1219402997 and 1219403015.

It is not a weakly prime, because it can be changed into another prime (1219403051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609701520 + 609701521.

It is an arithmetic number, because the mean of its divisors is an integer number (609701521).

Almost surely, 2^1219403041 is an apocalyptic number.

It is an amenable number.

1219403041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219403041 is an equidigital number, since it uses as much as digits as its factorization.

1219403041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1219403041 is about 34919.9519043197. The cubic root of 1219403041 is about 1068.3554207210.

The spelling of 1219403041 in words is "one billion, two hundred nineteen million, four hundred three thousand, forty-one".