1105819597 has 2 divisors, whose sum is σ = 1105819598. Its totient is φ = 1105819596.

The previous prime is 1105819579. The next prime is 1105819661. The reversal of 1105819597 is 7959185011.

Together with previous prime (1105819579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 939177316 + 166642281 = 30646^2 + 12909^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105819597 is a prime.

It is a super-2 number, since 2×1105819597² = 2445673962218484818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105819397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552909798 + 552909799.

It is an arithmetic number, because the mean of its divisors is an integer number (552909799).

Almost surely, 2^1105819597 is an apocalyptic number.

It is an amenable number.

1105819597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105819597 is an equidigital number, since it uses as much as digits as its factorization.

1105819597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 46.

The square root of 1105819597 is about 33253.8658955617. The cubic root of 1105819597 is about 1034.0973551718.

The spelling of 1105819597 in words is "one billion, one hundred five million, eight hundred nineteen thousand, five hundred ninety-seven".