1235240299 has 2 divisors, whose sum is σ = 1235240300. Its totient is φ = 1235240298.

The previous prime is 1235240273. The next prime is 1235240309. The reversal of 1235240299 is 9920425321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1235240299 is a prime.

It is not a weakly prime, because it can be changed into another prime (1235240399) 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, 617620149 + 617620150.

It is an arithmetic number, because the mean of its divisors is an integer number (617620150).

Almost surely, 2^1235240299 is an apocalyptic number.

1235240299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235240299 is an equidigital number, since it uses as much as digits as its factorization.

1235240299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1235240299 is about 35145.9855317787. The cubic root of 1235240299 is about 1072.9607054195.

The spelling of 1235240299 in words is "one billion, two hundred thirty-five million, two hundred forty thousand, two hundred ninety-nine".