1309907 has 2 divisors, whose sum is σ = 1309908. Its totient is φ = 1309906.

The previous prime is 1309883. The next prime is 1309921. The reversal of 1309907 is 7099031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1309907 - 2¹⁰ = 1308883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1309907.

It is not a weakly prime, because it can be changed into another prime (1309927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654953 + 654954.

It is an arithmetic number, because the mean of its divisors is an integer number (654954).

2^1309907 is an apocalyptic number.

1309907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309907 is an equidigital number, since it uses as much as digits as its factorization.

1309907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 1309907 is about 1144.5116862662. The cubic root of 1309907 is about 109.4158287843.

The spelling of 1309907 in words is "one million, three hundred nine thousand, nine hundred seven".