1072968091 has 4 divisors (see below), whose sum is σ = 1155504112. Its totient is φ = 990432072.

The previous prime is 1072968079. The next prime is 1072968137. The reversal of 1072968091 is 1908692701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1908692701 = 47 ⋅40610483.

It is a cyclic number.

It is not a de Polignac number, because 1072968091 - 2⁹ = 1072967579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072968031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41267991 + ... + 41268016.

It is an arithmetic number, because the mean of its divisors is an integer number (288876028).

Almost surely, 2^1072968091 is an apocalyptic number.

1072968091 is a deficient number, since it is larger than the sum of its proper divisors (82536021).

1072968091 is an equidigital number, since it uses as much as digits as its factorization.

1072968091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82536020.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1072968091 is about 32756.1916437183. The cubic root of 1072968091 is about 1023.7539777998.

The spelling of 1072968091 in words is "one billion, seventy-two million, nine hundred sixty-eight thousand, ninety-one".