1241295899 has 2 divisors, whose sum is σ = 1241295900. Its totient is φ = 1241295898.

The previous prime is 1241295889. The next prime is 1241295931. The reversal of 1241295899 is 9985921421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241295899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1241295829) 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, 620647949 + 620647950.

It is an arithmetic number, because the mean of its divisors is an integer number (620647950).

Almost surely, 2^1241295899 is an apocalyptic number.

1241295899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241295899 is an equidigital number, since it uses as much as digits as its factorization.

1241295899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 50.

The square root of 1241295899 is about 35232.0294476489. The cubic root of 1241295899 is about 1074.7111966931.

The spelling of 1241295899 in words is "one billion, two hundred forty-one million, two hundred ninety-five thousand, eight hundred ninety-nine".