1097751091 has 2 divisors, whose sum is σ = 1097751092. Its totient is φ = 1097751090.

The previous prime is 1097751077. The next prime is 1097751101. The reversal of 1097751091 is 1901577901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1097751091 - 2⁷ = 1097750963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097751191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548875545 + 548875546.

It is an arithmetic number, because the mean of its divisors is an integer number (548875546).

Almost surely, 2^1097751091 is an apocalyptic number.

1097751091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097751091 is an equidigital number, since it uses as much as digits as its factorization.

1097751091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 40.

The square root of 1097751091 is about 33132.3269783455. The cubic root of 1097751091 is about 1031.5761494207.

The spelling of 1097751091 in words is "one billion, ninety-seven million, seven hundred fifty-one thousand, ninety-one".