1301939 has 2 divisors, whose sum is σ = 1301940. Its totient is φ = 1301938.

The previous prime is 1301929. The next prime is 1301941. The reversal of 1301939 is 9391031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301939 is a prime.

It is a Sophie Germain prime.

Together with 1301941, 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 (1301929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650969 + 650970.

It is an arithmetic number, because the mean of its divisors is an integer number (650970).

2^1301939 is an apocalyptic number.

1301939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301939 is an equidigital number, since it uses as much as digits as its factorization.

1301939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1301939 is about 1141.0254160184. The cubic root of 1301939 is about 109.1935231660.

The spelling of 1301939 in words is "one million, three hundred one thousand, nine hundred thirty-nine".