1309676507 has 2 divisors, whose sum is σ = 1309676508. Its totient is φ = 1309676506.

The previous prime is 1309676491. The next prime is 1309676539. The reversal of 1309676507 is 7056769031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1309676507 - 2⁴ = 1309676491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1309676597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654838253 + 654838254.

It is an arithmetic number, because the mean of its divisors is an integer number (654838254).

Almost surely, 2^1309676507 is an apocalyptic number.

1309676507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309676507 is an equidigital number, since it uses as much as digits as its factorization.

1309676507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 1309676507 is about 36189.4529801156. The cubic root of 1309676507 is about 1094.0941075561.

The spelling of 1309676507 in words is "one billion, three hundred nine million, six hundred seventy-six thousand, five hundred seven".