1099641497 has 8 divisors (see below), whose sum is σ = 1104907680. Its totient is φ = 1094385600.

The previous prime is 1099641479. The next prime is 1099641581. The reversal of 1099641497 is 7941469901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1099641497 - 2⁸ = 1099641241 is a prime.

It is a super-2 number, since 2×1099641497² = 2418422843848802018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099641437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283622 + ... + 287472.

It is an arithmetic number, because the mean of its divisors is an integer number (138113460).

Almost surely, 2^1099641497 is an apocalyptic number.

It is an amenable number.

1099641497 is a deficient number, since it is larger than the sum of its proper divisors (5266183).

1099641497 is a wasteful number, since it uses less digits than its factorization.

1099641497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1099641497 is about 33160.8428270453. The cubic root of 1099641497 is about 1032.1679591747.

The spelling of 1099641497 in words is "one billion, ninety-nine million, six hundred forty-one thousand, four hundred ninety-seven".