1229431507 has 2 divisors, whose sum is σ = 1229431508. Its totient is φ = 1229431506.

The previous prime is 1229431487. The next prime is 1229431519. The reversal of 1229431507 is 7051349221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1229431507 - 2²³ = 1221042899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1229431547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614715753 + 614715754.

It is an arithmetic number, because the mean of its divisors is an integer number (614715754).

Almost surely, 2^1229431507 is an apocalyptic number.

1229431507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229431507 is an equidigital number, since it uses as much as digits as its factorization.

1229431507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1229431507 is about 35063.2500917984. The cubic root of 1229431507 is about 1071.2761746429.

The spelling of 1229431507 in words is "one billion, two hundred twenty-nine million, four hundred thirty-one thousand, five hundred seven".