1100605997 has 2 divisors, whose sum is σ = 1100605998. Its totient is φ = 1100605996.

The previous prime is 1100605973. The next prime is 1100606011. The reversal of 1100605997 is 7995060011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670084996 + 430521001 = 25886^2 + 20749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100605997 - 2¹⁶ = 1100540461 is a prime.

It is a super-2 number, since 2×1100605997² = 2422667121264728018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1100605997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100605967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550302998 + 550302999.

It is an arithmetic number, because the mean of its divisors is an integer number (550302999).

Almost surely, 2^1100605997 is an apocalyptic number.

It is an amenable number.

1100605997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100605997 is an equidigital number, since it uses as much as digits as its factorization.

1100605997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 1100605997 is about 33175.3823941790. The cubic root of 1100605997 is about 1032.4696438847.

The spelling of 1100605997 in words is "one billion, one hundred million, six hundred five thousand, nine hundred ninety-seven".