1240099907 has 2 divisors, whose sum is σ = 1240099908. Its totient is φ = 1240099906.

The previous prime is 1240099873. The next prime is 1240099909. The reversal of 1240099907 is 7099900421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240099907 - 2⁶ = 1240099843 is a prime.

Together with 1240099909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1240099909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620049953 + 620049954.

It is an arithmetic number, because the mean of its divisors is an integer number (620049954).

Almost surely, 2^1240099907 is an apocalyptic number.

1240099907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240099907 is an equidigital number, since it uses as much as digits as its factorization.

1240099907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1240099907 is about 35215.0522788196. The cubic root of 1240099907 is about 1074.3659233845.

The spelling of 1240099907 in words is "one billion, two hundred forty million, ninety-nine thousand, nine hundred seven".