1304919149 has 2 divisors, whose sum is σ = 1304919150. Its totient is φ = 1304919148.

The previous prime is 1304919101. The next prime is 1304919169. The reversal of 1304919149 is 9419194031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1293481225 + 11437924 = 35965^2 + 3382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304919149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304919169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652459574 + 652459575.

It is an arithmetic number, because the mean of its divisors is an integer number (652459575).

Almost surely, 2^1304919149 is an apocalyptic number.

It is an amenable number.

1304919149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304919149 is an equidigital number, since it uses as much as digits as its factorization.

1304919149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 1304919149 is about 36123.6646673618. The cubic root of 1304919149 is about 1092.7677463248.

The spelling of 1304919149 in words is "one billion, three hundred four million, nine hundred nineteen thousand, one hundred forty-nine".