1073265691 has 2 divisors, whose sum is σ = 1073265692. Its totient is φ = 1073265690.

The previous prime is 1073265689. The next prime is 1073265701. The reversal of 1073265691 is 1965623701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1073265691 - 2¹ = 1073265689 is a prime.

Together with 1073265689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1073265631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536632845 + 536632846.

It is an arithmetic number, because the mean of its divisors is an integer number (536632846).

Almost surely, 2^1073265691 is an apocalyptic number.

1073265691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073265691 is an equidigital number, since it uses as much as digits as its factorization.

1073265691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 1073265691 is about 32760.7339813991. The cubic root of 1073265691 is about 1023.8486190176.

The spelling of 1073265691 in words is "one billion, seventy-three million, two hundred sixty-five thousand, six hundred ninety-one".