1301470991 has 2 divisors, whose sum is σ = 1301470992. Its totient is φ = 1301470990.

The previous prime is 1301470957. The next prime is 1301470993. The reversal of 1301470991 is 1990741031.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1990741031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1301470991 - 2³⁰ = 227729167 is a prime.

It is a Sophie Germain prime.

Together with 1301470993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301470993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650735495 + 650735496.

It is an arithmetic number, because the mean of its divisors is an integer number (650735496).

Almost surely, 2^1301470991 is an apocalyptic number.

1301470991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301470991 is an equidigital number, since it uses as much as digits as its factorization.

1301470991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 1301470991 is about 36075.9059622901. The cubic root of 1301470991 is about 1091.8043763836.

The spelling of 1301470991 in words is "one billion, three hundred one million, four hundred seventy thousand, nine hundred ninety-one".